Home / 38,779,517-53,518,127.76-21,375,822.96

Finding the Fourth Proportional to 38,779,517, 53,518,127.76 and 21,375,822.96

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Solution

The fourth proportional to 38,779,517, 53,518,127.76 and 21,375,822.96 is: 29,499,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779,517 : 53,518,127.76 = 21,375,822.96 : x
  2. Step 2: Convert to fraction form
    38,779,517/53,518,127.76 = 21,375,822.96/x
  3. Step 3: Cross multiply
    38,779,517x = 53,518,127.76 × 21,375,822.96
  4. Step 4: Simplify right side
    38,779,517x = 1,143,994,024,148,421.25
  5. Step 5: Solve for x
    x = 1,143,994,024,148,421.25/38,779,517
  6. Step 6: Final answer
    x = 29,499,955.46

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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.