Home / 145,655,394.48-218,514,584.52-77,488,179.12

Finding the Fourth Proportional to 145,655,394.48, 218,514,584.52 and 77,488,179.12

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Solution

The fourth proportional to 145,655,394.48, 218,514,584.52 and 77,488,179.12 is: 116,249,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,394.48 : 218,514,584.52 = 77,488,179.12 : x
  2. Step 2: Convert to fraction form
    145,655,394.48/218,514,584.52 = 77,488,179.12/x
  3. Step 3: Cross multiply
    145,655,394.48x = 218,514,584.52 × 77,488,179.12
  4. Step 4: Simplify right side
    145,655,394.48x = 16,932,297,265,618,142
  5. Step 5: Solve for x
    x = 16,932,297,265,618,142/145,655,394.48
  6. Step 6: Final answer
    x = 116,249,022.74

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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.