Home / 319,919,632.80-479,879,449.20-282,931,339.20

Finding the Fourth Proportional to 319,919,632.80, 479,879,449.20 and 282,931,339.20

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Solution

The fourth proportional to 319,919,632.80, 479,879,449.20 and 282,931,339.20 is: 424,397,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,919,632.80 : 479,879,449.20 = 282,931,339.20 : x
  2. Step 2: Convert to fraction form
    319,919,632.80/479,879,449.20 = 282,931,339.20/x
  3. Step 3: Cross multiply
    319,919,632.80x = 479,879,449.20 × 282,931,339.20
  4. Step 4: Simplify right side
    319,919,632.80x = 135,772,935,216,714,352
  5. Step 5: Solve for x
    x = 135,772,935,216,714,352/319,919,632.80
  6. Step 6: Final answer
    x = 424,397,008.80

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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.