Home / 99,642,213.60-149,463,320.40-61,179,007.20

Finding the Fourth Proportional to 99,642,213.60, 149,463,320.40 and 61,179,007.20

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Solution

The fourth proportional to 99,642,213.60, 149,463,320.40 and 61,179,007.20 is: 91,768,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,213.60 : 149,463,320.40 = 61,179,007.20 : x
  2. Step 2: Convert to fraction form
    99,642,213.60/149,463,320.40 = 61,179,007.20/x
  3. Step 3: Cross multiply
    99,642,213.60x = 149,463,320.40 × 61,179,007.20
  4. Step 4: Simplify right side
    99,642,213.60x = 9,144,017,554,887,508
  5. Step 5: Solve for x
    x = 9,144,017,554,887,508/99,642,213.60
  6. Step 6: Final answer
    x = 91,768,510.80

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1.5x scale

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.