Home / 82,995,421.20-124,514,904.60-31,879,107.60

Finding the Fourth Proportional to 82,995,421.20, 124,514,904.60 and 31,879,107.60

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Solution

The fourth proportional to 82,995,421.20, 124,514,904.60 and 31,879,107.60 is: 47,827,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,995,421.20 : 124,514,904.60 = 31,879,107.60 : x
  2. Step 2: Convert to fraction form
    82,995,421.20/124,514,904.60 = 31,879,107.60/x
  3. Step 3: Cross multiply
    82,995,421.20x = 124,514,904.60 × 31,879,107.60
  4. Step 4: Simplify right side
    82,995,421.20x = 3,969,424,041,547,135
  5. Step 5: Solve for x
    x = 3,969,424,041,547,135/82,995,421.20
  6. Step 6: Final answer
    x = 47,827,024.48

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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.