Home / 66,432,917.80-99,649,376.70-39,111,164.20

Finding the Fourth Proportional to 66,432,917.80, 99,649,376.70 and 39,111,164.20

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Solution

The fourth proportional to 66,432,917.80, 99,649,376.70 and 39,111,164.20 is: 58,666,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,917.80 : 99,649,376.70 = 39,111,164.20 : x
  2. Step 2: Convert to fraction form
    66,432,917.80/99,649,376.70 = 39,111,164.20/x
  3. Step 3: Cross multiply
    66,432,917.80x = 99,649,376.70 × 39,111,164.20
  4. Step 4: Simplify right side
    66,432,917.80x = 3,897,403,134,541,354.50
  5. Step 5: Solve for x
    x = 3,897,403,134,541,354.50/66,432,917.80
  6. Step 6: Final answer
    x = 58,666,746.30

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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.