Home / 298,931,021.20-448,396,531.80-105,061,344.40

Finding the Fourth Proportional to 298,931,021.20, 448,396,531.80 and 105,061,344.40

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Solution

The fourth proportional to 298,931,021.20, 448,396,531.80 and 105,061,344.40 is: 157,592,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,931,021.20 : 448,396,531.80 = 105,061,344.40 : x
  2. Step 2: Convert to fraction form
    298,931,021.20/448,396,531.80 = 105,061,344.40/x
  3. Step 3: Cross multiply
    298,931,021.20x = 448,396,531.80 × 105,061,344.40
  4. Step 4: Simplify right side
    298,931,021.20x = 47,109,142,455,205,352
  5. Step 5: Solve for x
    x = 47,109,142,455,205,352/298,931,021.20
  6. Step 6: Final answer
    x = 157,592,016.60

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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.