Home / 521,520,774,001.35-782,281,161,002.02-168,229,000,868.55

Finding the Fourth Proportional to 521,520,774,001.35, 782,281,161,002.02 and 168,229,000,868.55

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Solution

The fourth proportional to 521,520,774,001.35, 782,281,161,002.02 and 168,229,000,868.55 is: 252,343,501,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,774,001.35 : 782,281,161,002.02 = 168,229,000,868.55 : x
  2. Step 2: Convert to fraction form
    521,520,774,001.35/782,281,161,002.02 = 168,229,000,868.55/x
  3. Step 3: Cross multiply
    521,520,774,001.35x = 782,281,161,002.02 × 168,229,000,868.55
  4. Step 4: Simplify right side
    521,520,774,001.35x = 131,602,378,113,659,126,677,504
  5. Step 5: Solve for x
    x = 131,602,378,113,659,126,677,504/521,520,774,001.35
  6. Step 6: Final answer
    x = 252,343,501,302.82

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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.