Home / 66,580,089.90-99,870,134.86-18,711,033.90

Finding the Fourth Proportional to 66,580,089.90, 99,870,134.86 and 18,711,033.90

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Solution

The fourth proportional to 66,580,089.90, 99,870,134.86 and 18,711,033.90 is: 28,066,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,089.90 : 99,870,134.86 = 18,711,033.90 : x
  2. Step 2: Convert to fraction form
    66,580,089.90/99,870,134.86 = 18,711,033.90/x
  3. Step 3: Cross multiply
    66,580,089.90x = 99,870,134.86 × 18,711,033.90
  4. Step 4: Simplify right side
    66,580,089.90x = 1,868,673,478,963,031.50
  5. Step 5: Solve for x
    x = 1,868,673,478,963,031.50/66,580,089.90
  6. Step 6: Final answer
    x = 28,066,550.85

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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.