Home / 261,931,582.71-392,783,311.46-75,144,312.16

Finding the Fourth Proportional to 261,931,582.71, 392,783,311.46 and 75,144,312.16

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Solution

The fourth proportional to 261,931,582.71, 392,783,311.46 and 75,144,312.16 is: 112,683,745.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,931,582.71 : 392,783,311.46 = 75,144,312.16 : x
  2. Step 2: Convert to fraction form
    261,931,582.71/392,783,311.46 = 75,144,312.16/x
  3. Step 3: Cross multiply
    261,931,582.71x = 392,783,311.46 × 75,144,312.16
  4. Step 4: Simplify right side
    261,931,582.71x = 29,515,431,767,213,020
  5. Step 5: Solve for x
    x = 29,515,431,767,213,020/261,931,582.71
  6. Step 6: Final answer
    x = 112,683,745.36

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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.