Home / 66,475,141.60-99,720,488.40-21,041,528.80

Finding the Fourth Proportional to 66,475,141.60, 99,720,488.40 and 21,041,528.80

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Solution

The fourth proportional to 66,475,141.60, 99,720,488.40 and 21,041,528.80 is: 31,564,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475,141.60 : 99,720,488.40 = 21,041,528.80 : x
  2. Step 2: Convert to fraction form
    66,475,141.60/99,720,488.40 = 21,041,528.80/x
  3. Step 3: Cross multiply
    66,475,141.60x = 99,720,488.40 × 21,041,528.80
  4. Step 4: Simplify right side
    66,475,141.60x = 2,098,271,528,618,666
  5. Step 5: Solve for x
    x = 2,098,271,528,618,666/66,475,141.60
  6. Step 6: Final answer
    x = 31,564,754.56

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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.