Home / 74,686,105.40-112,029,158.10-70,151,142.20

Finding the Fourth Proportional to 74,686,105.40, 112,029,158.10 and 70,151,142.20

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Solution

The fourth proportional to 74,686,105.40, 112,029,158.10 and 70,151,142.20 is: 105,226,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686,105.40 : 112,029,158.10 = 70,151,142.20 : x
  2. Step 2: Convert to fraction form
    74,686,105.40/112,029,158.10 = 70,151,142.20/x
  3. Step 3: Cross multiply
    74,686,105.40x = 112,029,158.10 × 70,151,142.20
  4. Step 4: Simplify right side
    74,686,105.40x = 7,858,973,400,419,382
  5. Step 5: Solve for x
    x = 7,858,973,400,419,382/74,686,105.40
  6. Step 6: Final answer
    x = 105,226,713.30

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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.