Home / 66,590,729.20-99,718,132.20-53,153,801.20

Finding the Fourth Proportional to 66,590,729.20, 99,718,132.20 and 53,153,801.20

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Solution

The fourth proportional to 66,590,729.20, 99,718,132.20 and 53,153,801.20 is: 79,596,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,590,729.20 : 99,718,132.20 = 53,153,801.20 : x
  2. Step 2: Convert to fraction form
    66,590,729.20/99,718,132.20 = 53,153,801.20/x
  3. Step 3: Cross multiply
    66,590,729.20x = 99,718,132.20 × 53,153,801.20
  4. Step 4: Simplify right side
    66,590,729.20x = 5,300,397,774,994,119
  5. Step 5: Solve for x
    x = 5,300,397,774,994,119/66,590,729.20
  6. Step 6: Final answer
    x = 79,596,632.12

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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.