Home / 43,166,834.20-64,643,963.10-20,421,159.40

Finding the Fourth Proportional to 43,166,834.20, 64,643,963.10 and 20,421,159.40

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Solution

The fourth proportional to 43,166,834.20, 64,643,963.10 and 20,421,159.40 is: 30,581,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,166,834.20 : 64,643,963.10 = 20,421,159.40 : x
  2. Step 2: Convert to fraction form
    43,166,834.20/64,643,963.10 = 20,421,159.40/x
  3. Step 3: Cross multiply
    43,166,834.20x = 64,643,963.10 × 20,421,159.40
  4. Step 4: Simplify right side
    43,166,834.20x = 1,320,104,674,712,818
  5. Step 5: Solve for x
    x = 1,320,104,674,712,818/43,166,834.20
  6. Step 6: Final answer
    x = 30,581,456.79

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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.