Home / 651,658,915.80-977,535,612.90-392,315,707.80

Finding the Fourth Proportional to 651,658,915.80, 977,535,612.90 and 392,315,707.80

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Solution

The fourth proportional to 651,658,915.80, 977,535,612.90 and 392,315,707.80 is: 588,502,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,658,915.80 : 977,535,612.90 = 392,315,707.80 : x
  2. Step 2: Convert to fraction form
    651,658,915.80/977,535,612.90 = 392,315,707.80/x
  3. Step 3: Cross multiply
    651,658,915.80x = 977,535,612.90 × 392,315,707.80
  4. Step 4: Simplify right side
    651,658,915.80x = 383,502,575,874,570,304
  5. Step 5: Solve for x
    x = 383,502,575,874,570,304/651,658,915.80
  6. Step 6: Final answer
    x = 588,502,000.93

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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.