Home / 261,812,129.40-392,718,194.10-116,091,007.20

Finding the Fourth Proportional to 261,812,129.40, 392,718,194.10 and 116,091,007.20

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Solution

The fourth proportional to 261,812,129.40, 392,718,194.10 and 116,091,007.20 is: 174,136,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,812,129.40 : 392,718,194.10 = 116,091,007.20 : x
  2. Step 2: Convert to fraction form
    261,812,129.40/392,718,194.10 = 116,091,007.20/x
  3. Step 3: Cross multiply
    261,812,129.40x = 392,718,194.10 × 116,091,007.20
  4. Step 4: Simplify right side
    261,812,129.40x = 45,591,050,698,834,104
  5. Step 5: Solve for x
    x = 45,591,050,698,834,104/261,812,129.40
  6. Step 6: Final answer
    x = 174,136,510.80

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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.