Home / 126,036,006.60-189,054,009.90-74,891,699.40

Finding the Fourth Proportional to 126,036,006.60, 189,054,009.90 and 74,891,699.40

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Solution

The fourth proportional to 126,036,006.60, 189,054,009.90 and 74,891,699.40 is: 112,337,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,036,006.60 : 189,054,009.90 = 74,891,699.40 : x
  2. Step 2: Convert to fraction form
    126,036,006.60/189,054,009.90 = 74,891,699.40/x
  3. Step 3: Cross multiply
    126,036,006.60x = 189,054,009.90 × 74,891,699.40
  4. Step 4: Simplify right side
    126,036,006.60x = 14,158,576,079,795,426
  5. Step 5: Solve for x
    x = 14,158,576,079,795,426/126,036,006.60
  6. Step 6: Final answer
    x = 112,337,549.10

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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.