Home / 145,514,488.70-218,271,733.05-99,597,986.30

Finding the Fourth Proportional to 145,514,488.70, 218,271,733.05 and 99,597,986.30

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Solution

The fourth proportional to 145,514,488.70, 218,271,733.05 and 99,597,986.30 is: 149,396,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514,488.70 : 218,271,733.05 = 99,597,986.30 : x
  2. Step 2: Convert to fraction form
    145,514,488.70/218,271,733.05 = 99,597,986.30/x
  3. Step 3: Cross multiply
    145,514,488.70x = 218,271,733.05 × 99,597,986.30
  4. Step 4: Simplify right side
    145,514,488.70x = 21,739,425,077,991,156
  5. Step 5: Solve for x
    x = 21,739,425,077,991,156/145,514,488.70
  6. Step 6: Final answer
    x = 149,396,979.45

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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.