Home / 628,734,915.40-943,102,373.14-284,361,147.40

Finding the Fourth Proportional to 628,734,915.40, 943,102,373.14 and 284,361,147.40

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Solution

The fourth proportional to 628,734,915.40, 943,102,373.14 and 284,361,147.40 is: 426,541,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,734,915.40 : 943,102,373.14 = 284,361,147.40 : x
  2. Step 2: Convert to fraction form
    628,734,915.40/943,102,373.14 = 284,361,147.40/x
  3. Step 3: Cross multiply
    628,734,915.40x = 943,102,373.14 × 284,361,147.40
  4. Step 4: Simplify right side
    628,734,915.40x = 268,181,672,941,753,312
  5. Step 5: Solve for x
    x = 268,181,672,941,753,312/628,734,915.40
  6. Step 6: Final answer
    x = 426,541,721.12

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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.