Home / 104,254,318.76-143,360,776.40-90,479,368.04

Finding the Fourth Proportional to 104,254,318.76, 143,360,776.40 and 90,479,368.04

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Solution

The fourth proportional to 104,254,318.76, 143,360,776.40 and 90,479,368.04 is: 124,418,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,254,318.76 : 143,360,776.40 = 90,479,368.04 : x
  2. Step 2: Convert to fraction form
    104,254,318.76/143,360,776.40 = 90,479,368.04/x
  3. Step 3: Cross multiply
    104,254,318.76x = 143,360,776.40 × 90,479,368.04
  4. Step 4: Simplify right side
    104,254,318.76x = 12,971,192,449,226,546
  5. Step 5: Solve for x
    x = 12,971,192,449,226,546/104,254,318.76
  6. Step 6: Final answer
    x = 124,418,754.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.