Home / 78,506,151.77-117,772,019.27-23,179,579.39

Finding the Fourth Proportional to 78,506,151.77, 117,772,019.27 and 23,179,579.39

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Solution

The fourth proportional to 78,506,151.77, 117,772,019.27 and 23,179,579.39 is: 34,773,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,506,151.77 : 117,772,019.27 = 23,179,579.39 : x
  2. Step 2: Convert to fraction form
    78,506,151.77/117,772,019.27 = 23,179,579.39/x
  3. Step 3: Cross multiply
    78,506,151.77x = 117,772,019.27 × 23,179,579.39
  4. Step 4: Simplify right side
    78,506,151.77x = 2,729,905,870,773,181.50
  5. Step 5: Solve for x
    x = 2,729,905,870,773,181.50/78,506,151.77
  6. Step 6: Final answer
    x = 34,773,145.92

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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.