Home / 66,580,087.89-99,870,131.85-18,711,031.89

Finding the Fourth Proportional to 66,580,087.89, 99,870,131.85 and 18,711,031.89

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Solution

The fourth proportional to 66,580,087.89, 99,870,131.85 and 18,711,031.89 is: 28,066,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,087.89 : 99,870,131.85 = 18,711,031.89 : x
  2. Step 2: Convert to fraction form
    66,580,087.89/99,870,131.85 = 18,711,031.89/x
  3. Step 3: Cross multiply
    66,580,087.89x = 99,870,131.85 × 18,711,031.89
  4. Step 4: Simplify right side
    66,580,087.89x = 1,868,673,221,903,854.75
  5. Step 5: Solve for x
    x = 1,868,673,221,903,854.75/66,580,087.89
  6. Step 6: Final answer
    x = 28,066,547.84

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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.