Home / 20,333,337.03-28,036,298.68-15,167,730.51

Finding the Fourth Proportional to 20,333,337.03, 28,036,298.68 and 15,167,730.51

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Solution

The fourth proportional to 20,333,337.03, 28,036,298.68 and 15,167,730.51 is: 20,913,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333,337.03 : 28,036,298.68 = 15,167,730.51 : x
  2. Step 2: Convert to fraction form
    20,333,337.03/28,036,298.68 = 15,167,730.51/x
  3. Step 3: Cross multiply
    20,333,337.03x = 28,036,298.68 × 15,167,730.51
  4. Step 4: Simplify right side
    20,333,337.03x = 425,247,022,838,189.38
  5. Step 5: Solve for x
    x = 425,247,022,838,189.38/20,333,337.03
  6. Step 6: Final answer
    x = 20,913,784.21

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1.5x scale

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.