Home / 28,539,459.45-39,384,254.30-15,486,386.40

Finding the Fourth Proportional to 28,539,459.45, 39,384,254.30 and 15,486,386.40

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Solution

The fourth proportional to 28,539,459.45, 39,384,254.30 and 15,486,386.40 is: 21,371,104.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,459.45 : 39,384,254.30 = 15,486,386.40 : x
  2. Step 2: Convert to fraction form
    28,539,459.45/39,384,254.30 = 15,486,386.40/x
  3. Step 3: Cross multiply
    28,539,459.45x = 39,384,254.30 × 15,486,386.40
  4. Step 4: Simplify right side
    28,539,459.45x = 609,919,780,088,229.62
  5. Step 5: Solve for x
    x = 609,919,780,088,229.62/28,539,459.45
  6. Step 6: Final answer
    x = 21,371,104.84

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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.