Home / 80,879,421.60-121,319,132.40-46,442,044.80

Finding the Fourth Proportional to 80,879,421.60, 121,319,132.40 and 46,442,044.80

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Solution

The fourth proportional to 80,879,421.60, 121,319,132.40 and 46,442,044.80 is: 69,663,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,879,421.60 : 121,319,132.40 = 46,442,044.80 : x
  2. Step 2: Convert to fraction form
    80,879,421.60/121,319,132.40 = 46,442,044.80/x
  3. Step 3: Cross multiply
    80,879,421.60x = 121,319,132.40 × 46,442,044.80
  4. Step 4: Simplify right side
    80,879,421.60x = 5,634,308,582,017,931
  5. Step 5: Solve for x
    x = 5,634,308,582,017,931/80,879,421.60
  6. Step 6: Final answer
    x = 69,663,067.20

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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.