Home / 259,641,354.60-389,462,031.90-77,888,532.60

Finding the Fourth Proportional to 259,641,354.60, 389,462,031.90 and 77,888,532.60

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Solution

The fourth proportional to 259,641,354.60, 389,462,031.90 and 77,888,532.60 is: 116,832,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,641,354.60 : 389,462,031.90 = 77,888,532.60 : x
  2. Step 2: Convert to fraction form
    259,641,354.60/389,462,031.90 = 77,888,532.60/x
  3. Step 3: Cross multiply
    259,641,354.60x = 389,462,031.90 × 77,888,532.60
  4. Step 4: Simplify right side
    259,641,354.60x = 30,334,626,168,105,384
  5. Step 5: Solve for x
    x = 30,334,626,168,105,384/259,641,354.60
  6. Step 6: Final answer
    x = 116,832,798.90

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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.