Home / 28,348,479.68-42,528,920.96-9,181,174.40

Finding the Fourth Proportional to 28,348,479.68, 42,528,920.96 and 9,181,174.40

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Solution

The fourth proportional to 28,348,479.68, 42,528,920.96 and 9,181,174.40 is: 13,773,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348,479.68 : 42,528,920.96 = 9,181,174.40 : x
  2. Step 2: Convert to fraction form
    28,348,479.68/42,528,920.96 = 9,181,174.40/x
  3. Step 3: Cross multiply
    28,348,479.68x = 42,528,920.96 × 9,181,174.40
  4. Step 4: Simplify right side
    28,348,479.68x = 390,465,440,377,575.44
  5. Step 5: Solve for x
    x = 390,465,440,377,575.44/28,348,479.68
  6. Step 6: Final answer
    x = 13,773,770.05

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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.