Home / 521,489,444.40-782,234,166.60-157,983,800.40

Finding the Fourth Proportional to 521,489,444.40, 782,234,166.60 and 157,983,800.40

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Solution

The fourth proportional to 521,489,444.40, 782,234,166.60 and 157,983,800.40 is: 236,975,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,489,444.40 : 782,234,166.60 = 157,983,800.40 : x
  2. Step 2: Convert to fraction form
    521,489,444.40/782,234,166.60 = 157,983,800.40/x
  3. Step 3: Cross multiply
    521,489,444.40x = 782,234,166.60 × 157,983,800.40
  4. Step 4: Simplify right side
    521,489,444.40x = 123,580,326,442,194,752
  5. Step 5: Solve for x
    x = 123,580,326,442,194,752/521,489,444.40
  6. Step 6: Final answer
    x = 236,975,700.60

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1.5x scale

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.