Home / 100,794,368.40-139,103,219.30-61,103,572.02

Finding the Fourth Proportional to 100,794,368.40, 139,103,219.30 and 61,103,572.02

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Solution

The fourth proportional to 100,794,368.40, 139,103,219.30 and 61,103,572.02 is: 84,327,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,794,368.40 : 139,103,219.30 = 61,103,572.02 : x
  2. Step 2: Convert to fraction form
    100,794,368.40/139,103,219.30 = 61,103,572.02/x
  3. Step 3: Cross multiply
    100,794,368.40x = 139,103,219.30 × 61,103,572.02
  4. Step 4: Simplify right side
    100,794,368.40x = 8,499,703,578,711,405
  5. Step 5: Solve for x
    x = 8,499,703,578,711,405/100,794,368.40
  6. Step 6: Final answer
    x = 84,327,167.42

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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.