Home / 66,426,243.40-99,639,365.10-63,875,326.60

Finding the Fourth Proportional to 66,426,243.40, 99,639,365.10 and 63,875,326.60

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Solution

The fourth proportional to 66,426,243.40, 99,639,365.10 and 63,875,326.60 is: 95,812,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,426,243.40 : 99,639,365.10 = 63,875,326.60 : x
  2. Step 2: Convert to fraction form
    66,426,243.40/99,639,365.10 = 63,875,326.60/x
  3. Step 3: Cross multiply
    66,426,243.40x = 99,639,365.10 × 63,875,326.60
  4. Step 4: Simplify right side
    66,426,243.40x = 6,364,496,987,979,141
  5. Step 5: Solve for x
    x = 6,364,496,987,979,141/66,426,243.40
  6. Step 6: Final answer
    x = 95,812,989.90

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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.