Home / 13,381,808,678.52-18,466,905,447.72-7,360,772,177.76

Finding the Fourth Proportional to 13,381,808,678.52, 18,466,905,447.72 and 7,360,772,177.76

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Solution

The fourth proportional to 13,381,808,678.52, 18,466,905,447.72 and 7,360,772,177.76 is: 10,157,870,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381,808,678.52 : 18,466,905,447.72 = 7,360,772,177.76 : x
  2. Step 2: Convert to fraction form
    13,381,808,678.52/18,466,905,447.72 = 7,360,772,177.76/x
  3. Step 3: Cross multiply
    13,381,808,678.52x = 18,466,905,447.72 × 7,360,772,177.76
  4. Step 4: Simplify right side
    13,381,808,678.52x = 135,930,683,828,901,969,920
  5. Step 5: Solve for x
    x = 135,930,683,828,901,969,920/13,381,808,678.52
  6. Step 6: Final answer
    x = 10,157,870,815.11

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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.