Home / 66,553,742.80-99,830,614.20-30,721,934.80

Finding the Fourth Proportional to 66,553,742.80, 99,830,614.20 and 30,721,934.80

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Solution

The fourth proportional to 66,553,742.80, 99,830,614.20 and 30,721,934.80 is: 46,082,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,553,742.80 : 99,830,614.20 = 30,721,934.80 : x
  2. Step 2: Convert to fraction form
    66,553,742.80/99,830,614.20 = 30,721,934.80/x
  3. Step 3: Cross multiply
    66,553,742.80x = 99,830,614.20 × 30,721,934.80
  4. Step 4: Simplify right side
    66,553,742.80x = 3,066,989,620,496,354.50
  5. Step 5: Solve for x
    x = 3,066,989,620,496,354.50/66,553,742.80
  6. Step 6: Final answer
    x = 46,082,902.20

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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.