Home / 42,109,029.60-63,163,544.40-13,357,415.40

Finding the Fourth Proportional to 42,109,029.60, 63,163,544.40 and 13,357,415.40

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Solution

The fourth proportional to 42,109,029.60, 63,163,544.40 and 13,357,415.40 is: 20,036,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,109,029.60 : 63,163,544.40 = 13,357,415.40 : x
  2. Step 2: Convert to fraction form
    42,109,029.60/63,163,544.40 = 13,357,415.40/x
  3. Step 3: Cross multiply
    42,109,029.60x = 63,163,544.40 × 13,357,415.40
  4. Step 4: Simplify right side
    42,109,029.60x = 843,701,700,687,143.75
  5. Step 5: Solve for x
    x = 843,701,700,687,143.75/42,109,029.60
  6. Step 6: Final answer
    x = 20,036,123.10

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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.