Home / 526,902,700.12-727,126,580.90-288,710,034.39

Finding the Fourth Proportional to 526,902,700.12, 727,126,580.90 and 288,710,034.39

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Solution

The fourth proportional to 526,902,700.12, 727,126,580.90 and 288,710,034.39 is: 398,420,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,902,700.12 : 727,126,580.90 = 288,710,034.39 : x
  2. Step 2: Convert to fraction form
    526,902,700.12/727,126,580.90 = 288,710,034.39/x
  3. Step 3: Cross multiply
    526,902,700.12x = 727,126,580.90 × 288,710,034.39
  4. Step 4: Simplify right side
    526,902,700.12x = 209,928,740,176,078,560
  5. Step 5: Solve for x
    x = 209,928,740,176,078,560/526,902,700.12
  6. Step 6: Final answer
    x = 398,420,315.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.