Home / 261,931,583.71-392,783,312.95-75,144,313.16

Finding the Fourth Proportional to 261,931,583.71, 392,783,312.95 and 75,144,313.16

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Solution

The fourth proportional to 261,931,583.71, 392,783,312.95 and 75,144,313.16 is: 112,683,746.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,931,583.71 : 392,783,312.95 = 75,144,313.16 : x
  2. Step 2: Convert to fraction form
    261,931,583.71/392,783,312.95 = 75,144,313.16/x
  3. Step 3: Cross multiply
    261,931,583.71x = 392,783,312.95 × 75,144,313.16
  4. Step 4: Simplify right side
    261,931,583.71x = 29,515,432,272,337,080
  5. Step 5: Solve for x
    x = 29,515,432,272,337,080/261,931,583.71
  6. Step 6: Final answer
    x = 112,683,746.86

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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.