Home / 76,896,010.80-115,344,016.20-40,454,564.40

Finding the Fourth Proportional to 76,896,010.80, 115,344,016.20 and 40,454,564.40

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Solution

The fourth proportional to 76,896,010.80, 115,344,016.20 and 40,454,564.40 is: 60,681,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,896,010.80 : 115,344,016.20 = 40,454,564.40 : x
  2. Step 2: Convert to fraction form
    76,896,010.80/115,344,016.20 = 40,454,564.40/x
  3. Step 3: Cross multiply
    76,896,010.80x = 115,344,016.20 × 40,454,564.40
  4. Step 4: Simplify right side
    76,896,010.80x = 4,666,191,931,517,543
  5. Step 5: Solve for x
    x = 4,666,191,931,517,543/76,896,010.80
  6. Step 6: Final answer
    x = 60,681,846.60

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1.5x scale

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.