Home / 13,381,808,681.52-18,466,905,451.86-7,360,772,180.76

Finding the Fourth Proportional to 13,381,808,681.52, 18,466,905,451.86 and 7,360,772,180.76

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Solution

The fourth proportional to 13,381,808,681.52, 18,466,905,451.86 and 7,360,772,180.76 is: 10,157,870,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381,808,681.52 : 18,466,905,451.86 = 7,360,772,180.76 : x
  2. Step 2: Convert to fraction form
    13,381,808,681.52/18,466,905,451.86 = 7,360,772,180.76/x
  3. Step 3: Cross multiply
    13,381,808,681.52x = 18,466,905,451.86 × 7,360,772,180.76
  4. Step 4: Simplify right side
    13,381,808,681.52x = 135,930,683,914,776,281,088
  5. Step 5: Solve for x
    x = 135,930,683,914,776,281,088/13,381,808,681.52
  6. Step 6: Final answer
    x = 10,157,870,819.25

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Double scale
Find fourth proportional to 13,381,808,682.52, 18,466,905,453.24 and 7,360,772,181.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.