Home / 81,572,559.79-112,572,851.64-45,815,301.89

Finding the Fourth Proportional to 81,572,559.79, 112,572,851.64 and 45,815,301.89

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Solution

The fourth proportional to 81,572,559.79, 112,572,851.64 and 45,815,301.89 is: 63,226,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,572,559.79 : 112,572,851.64 = 45,815,301.89 : x
  2. Step 2: Convert to fraction form
    81,572,559.79/112,572,851.64 = 45,815,301.89/x
  3. Step 3: Cross multiply
    81,572,559.79x = 112,572,851.64 × 45,815,301.89
  4. Step 4: Simplify right side
    81,572,559.79x = 5,157,559,182,275,705
  5. Step 5: Solve for x
    x = 5,157,559,182,275,705/81,572,559.79
  6. Step 6: Final answer
    x = 63,226,643.81

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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.