Home / 42,808,809.91-64,213,339.43-18,210,398.93

Finding the Fourth Proportional to 42,808,809.91, 64,213,339.43 and 18,210,398.93

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Solution

The fourth proportional to 42,808,809.91, 64,213,339.43 and 18,210,398.93 is: 27,315,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,808,809.91 : 64,213,339.43 = 18,210,398.93 : x
  2. Step 2: Convert to fraction form
    42,808,809.91/64,213,339.43 = 18,210,398.93/x
  3. Step 3: Cross multiply
    42,808,809.91x = 64,213,339.43 × 18,210,398.93
  4. Step 4: Simplify right side
    42,808,809.91x = 1,169,350,527,420,276.50
  5. Step 5: Solve for x
    x = 1,169,350,527,420,276.50/42,808,809.91
  6. Step 6: Final answer
    x = 27,315,651.38

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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.