Home / 7,920,989.52-11,879,582.76-3,657,061.68

Finding the Fourth Proportional to 7,920,989.52, 11,879,582.76 and 3,657,061.68

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Solution

The fourth proportional to 7,920,989.52, 11,879,582.76 and 3,657,061.68 is: 5,484,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,989.52 : 11,879,582.76 = 3,657,061.68 : x
  2. Step 2: Convert to fraction form
    7,920,989.52/11,879,582.76 = 3,657,061.68/x
  3. Step 3: Cross multiply
    7,920,989.52x = 11,879,582.76 × 3,657,061.68
  4. Step 4: Simplify right side
    7,920,989.52x = 43,444,366,885,984.64
  5. Step 5: Solve for x
    x = 43,444,366,885,984.64/7,920,989.52
  6. Step 6: Final answer
    x = 5,484,714.60

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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.