Home / 78,294,282.12-117,456,547.32-29,768,362.92

Finding the Fourth Proportional to 78,294,282.12, 117,456,547.32 and 29,768,362.92

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Solution

The fourth proportional to 78,294,282.12, 117,456,547.32 and 29,768,362.92 is: 44,658,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,294,282.12 : 117,456,547.32 = 29,768,362.92 : x
  2. Step 2: Convert to fraction form
    78,294,282.12/117,456,547.32 = 29,768,362.92/x
  3. Step 3: Cross multiply
    78,294,282.12x = 117,456,547.32 × 29,768,362.92
  4. Step 4: Simplify right side
    78,294,282.12x = 3,496,489,127,951,913.50
  5. Step 5: Solve for x
    x = 3,496,489,127,951,913.50/78,294,282.12
  6. Step 6: Final answer
    x = 44,658,294.75

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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.