Home / 91,826,632.80-137,889,248.40-66,445,768.80

Finding the Fourth Proportional to 91,826,632.80, 137,889,248.40 and 66,445,768.80

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Solution

The fourth proportional to 91,826,632.80, 137,889,248.40 and 66,445,768.80 is: 99,776,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,826,632.80 : 137,889,248.40 = 66,445,768.80 : x
  2. Step 2: Convert to fraction form
    91,826,632.80/137,889,248.40 = 66,445,768.80/x
  3. Step 3: Cross multiply
    91,826,632.80x = 137,889,248.40 × 66,445,768.80
  4. Step 4: Simplify right side
    91,826,632.80x = 9,162,157,119,192,170
  5. Step 5: Solve for x
    x = 9,162,157,119,192,170/91,826,632.80
  6. Step 6: Final answer
    x = 99,776,686.13

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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.