Home / 98,345,026.40-147,517,539.60-72,516,993.80

Finding the Fourth Proportional to 98,345,026.40, 147,517,539.60 and 72,516,993.80

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Solution

The fourth proportional to 98,345,026.40, 147,517,539.60 and 72,516,993.80 is: 108,775,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,345,026.40 : 147,517,539.60 = 72,516,993.80 : x
  2. Step 2: Convert to fraction form
    98,345,026.40/147,517,539.60 = 72,516,993.80/x
  3. Step 3: Cross multiply
    98,345,026.40x = 147,517,539.60 × 72,516,993.80
  4. Step 4: Simplify right side
    98,345,026.40x = 10,697,528,504,564,454
  5. Step 5: Solve for x
    x = 10,697,528,504,564,454/98,345,026.40
  6. Step 6: Final answer
    x = 108,775,490.70

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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.