Home / 199,280,007.60-298,920,011.40-144,860,449.20

Finding the Fourth Proportional to 199,280,007.60, 298,920,011.40 and 144,860,449.20

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Solution

The fourth proportional to 199,280,007.60, 298,920,011.40 and 144,860,449.20 is: 217,290,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,280,007.60 : 298,920,011.40 = 144,860,449.20 : x
  2. Step 2: Convert to fraction form
    199,280,007.60/298,920,011.40 = 144,860,449.20/x
  3. Step 3: Cross multiply
    199,280,007.60x = 298,920,011.40 × 144,860,449.20
  4. Step 4: Simplify right side
    199,280,007.60x = 43,301,687,126,273,112
  5. Step 5: Solve for x
    x = 43,301,687,126,273,112/199,280,007.60
  6. Step 6: Final answer
    x = 217,290,673.80

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1.5x scale

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.