Home / 13,138,141,882.50-18,130,485,682.17-7,116,533,764.74

Finding the Fourth Proportional to 13,138,141,882.50, 18,130,485,682.17 and 7,116,533,764.74

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Solution

The fourth proportional to 13,138,141,882.50, 18,130,485,682.17 and 7,116,533,764.74 is: 9,820,735,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,141,882.50 : 18,130,485,682.17 = 7,116,533,764.74 : x
  2. Step 2: Convert to fraction form
    13,138,141,882.50/18,130,485,682.17 = 7,116,533,764.74/x
  3. Step 3: Cross multiply
    13,138,141,882.50x = 18,130,485,682.17 × 7,116,533,764.74
  4. Step 4: Simplify right side
    13,138,141,882.50x = 129,026,213,528,312,168,448
  5. Step 5: Solve for x
    x = 129,026,213,528,312,168,448/13,138,141,882.50
  6. Step 6: Final answer
    x = 9,820,735,282.22

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Double scale
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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.