Home / 398,628,915.20-597,943,372.80-156,291,819.20

Finding the Fourth Proportional to 398,628,915.20, 597,943,372.80 and 156,291,819.20

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Solution

The fourth proportional to 398,628,915.20, 597,943,372.80 and 156,291,819.20 is: 234,437,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,628,915.20 : 597,943,372.80 = 156,291,819.20 : x
  2. Step 2: Convert to fraction form
    398,628,915.20/597,943,372.80 = 156,291,819.20/x
  3. Step 3: Cross multiply
    398,628,915.20x = 597,943,372.80 × 156,291,819.20
  4. Step 4: Simplify right side
    398,628,915.20x = 93,453,657,513,495,776
  5. Step 5: Solve for x
    x = 93,453,657,513,495,776/398,628,915.20
  6. Step 6: Final answer
    x = 234,437,728.80

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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.