Home / 66,430,521.80-99,645,782.70-55,668,841.55

Finding the Fourth Proportional to 66,430,521.80, 99,645,782.70 and 55,668,841.55

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Solution

The fourth proportional to 66,430,521.80, 99,645,782.70 and 55,668,841.55 is: 83,503,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,521.80 : 99,645,782.70 = 55,668,841.55 : x
  2. Step 2: Convert to fraction form
    66,430,521.80/99,645,782.70 = 55,668,841.55/x
  3. Step 3: Cross multiply
    66,430,521.80x = 99,645,782.70 × 55,668,841.55
  4. Step 4: Simplify right side
    66,430,521.80x = 5,547,165,288,252,031
  5. Step 5: Solve for x
    x = 5,547,165,288,252,031/66,430,521.80
  6. Step 6: Final answer
    x = 83,503,262.33

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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.