Home / 527,743,570.74-728,272,261.55-289,588,023.54

Finding the Fourth Proportional to 527,743,570.74, 728,272,261.55 and 289,588,023.54

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Solution

The fourth proportional to 527,743,570.74, 728,272,261.55 and 289,588,023.54 is: 399,623,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,743,570.74 : 728,272,261.55 = 289,588,023.54 : x
  2. Step 2: Convert to fraction form
    527,743,570.74/728,272,261.55 = 289,588,023.54/x
  3. Step 3: Cross multiply
    527,743,570.74x = 728,272,261.55 × 289,588,023.54
  4. Step 4: Simplify right side
    527,743,570.74x = 210,898,924,819,822,496
  5. Step 5: Solve for x
    x = 210,898,924,819,822,496/527,743,570.74
  6. Step 6: Final answer
    x = 399,623,863.77

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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.