Home / 20,019,864.43-30,032,158.61-15,003,061.39

Finding the Fourth Proportional to 20,019,864.43, 30,032,158.61 and 15,003,061.39

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Solution

The fourth proportional to 20,019,864.43, 30,032,158.61 and 15,003,061.39 is: 22,506,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019,864.43 : 30,032,158.61 = 15,003,061.39 : x
  2. Step 2: Convert to fraction form
    20,019,864.43/30,032,158.61 = 15,003,061.39/x
  3. Step 3: Cross multiply
    20,019,864.43x = 30,032,158.61 × 15,003,061.39
  4. Step 4: Simplify right side
    20,019,864.43x = 450,574,319,300,047.06
  5. Step 5: Solve for x
    x = 450,574,319,300,047.06/20,019,864.43
  6. Step 6: Final answer
    x = 22,506,362.16

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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.