Home / 86,688,299.90-130,012,551.71-51,683,319.14

Finding the Fourth Proportional to 86,688,299.90, 130,012,551.71 and 51,683,319.14

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Solution

The fourth proportional to 86,688,299.90, 130,012,551.71 and 51,683,319.14 is: 77,513,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,688,299.90 : 130,012,551.71 = 51,683,319.14 : x
  2. Step 2: Convert to fraction form
    86,688,299.90/130,012,551.71 = 51,683,319.14/x
  3. Step 3: Cross multiply
    86,688,299.90x = 130,012,551.71 × 51,683,319.14
  4. Step 4: Simplify right side
    86,688,299.90x = 6,719,480,202,785,087
  5. Step 5: Solve for x
    x = 6,719,480,202,785,087/86,688,299.90
  6. Step 6: Final answer
    x = 77,513,115.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.