Home / 91,864,458.80-137,796,688.20-45,947,956.40

Finding the Fourth Proportional to 91,864,458.80, 137,796,688.20 and 45,947,956.40

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Solution

The fourth proportional to 91,864,458.80, 137,796,688.20 and 45,947,956.40 is: 68,921,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864,458.80 : 137,796,688.20 = 45,947,956.40 : x
  2. Step 2: Convert to fraction form
    91,864,458.80/137,796,688.20 = 45,947,956.40/x
  3. Step 3: Cross multiply
    91,864,458.80x = 137,796,688.20 × 45,947,956.40
  4. Step 4: Simplify right side
    91,864,458.80x = 6,331,476,221,477,994
  5. Step 5: Solve for x
    x = 6,331,476,221,477,994/91,864,458.80
  6. Step 6: Final answer
    x = 68,921,934.60

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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.