Home / 13,818,665.86-20,730,655.59-5,298,337.87

Finding the Fourth Proportional to 13,818,665.86, 20,730,655.59 and 5,298,337.87

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Solution

The fourth proportional to 13,818,665.86, 20,730,655.59 and 5,298,337.87 is: 7,948,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818,665.86 : 20,730,655.59 = 5,298,337.87 : x
  2. Step 2: Convert to fraction form
    13,818,665.86/20,730,655.59 = 5,298,337.87/x
  3. Step 3: Cross multiply
    13,818,665.86x = 20,730,655.59 × 5,298,337.87
  4. Step 4: Simplify right side
    13,818,665.86x = 109,838,017,582,424.19
  5. Step 5: Solve for x
    x = 109,838,017,582,424.19/13,818,665.86
  6. Step 6: Final answer
    x = 7,948,525.47

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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.