Home / 458,842,052.15-688,262,454.92-213,064,290.80

Finding the Fourth Proportional to 458,842,052.15, 688,262,454.92 and 213,064,290.80

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Solution

The fourth proportional to 458,842,052.15, 688,262,454.92 and 213,064,290.80 is: 319,596,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,842,052.15 : 688,262,454.92 = 213,064,290.80 : x
  2. Step 2: Convert to fraction form
    458,842,052.15/688,262,454.92 = 213,064,290.80/x
  3. Step 3: Cross multiply
    458,842,052.15x = 688,262,454.92 × 213,064,290.80
  4. Step 4: Simplify right side
    458,842,052.15x = 146,644,151,838,888,128
  5. Step 5: Solve for x
    x = 146,644,151,838,888,128/458,842,052.15
  6. Step 6: Final answer
    x = 319,596,146.76

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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.