Home / 75,281,693.31-112,913,569.62-20,699,825.49

Finding the Fourth Proportional to 75,281,693.31, 112,913,569.62 and 20,699,825.49

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Solution

The fourth proportional to 75,281,693.31, 112,913,569.62 and 20,699,825.49 is: 31,047,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,281,693.31 : 112,913,569.62 = 20,699,825.49 : x
  2. Step 2: Convert to fraction form
    75,281,693.31/112,913,569.62 = 20,699,825.49/x
  3. Step 3: Cross multiply
    75,281,693.31x = 112,913,569.62 × 20,699,825.49
  4. Step 4: Simplify right side
    75,281,693.31x = 2,337,291,186,586,965.50
  5. Step 5: Solve for x
    x = 2,337,291,186,586,965.50/75,281,693.31
  6. Step 6: Final answer
    x = 31,047,271.70

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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.