Home / 298,943,599.20-446,980,508.10-221,459,501.40

Finding the Fourth Proportional to 298,943,599.20, 446,980,508.10 and 221,459,501.40

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Solution

The fourth proportional to 298,943,599.20, 446,980,508.10 and 221,459,501.40 is: 331,126,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,943,599.20 : 446,980,508.10 = 221,459,501.40 : x
  2. Step 2: Convert to fraction form
    298,943,599.20/446,980,508.10 = 221,459,501.40/x
  3. Step 3: Cross multiply
    298,943,599.20x = 446,980,508.10 × 221,459,501.40
  4. Step 4: Simplify right side
    298,943,599.20x = 98,988,080,459,344,672
  5. Step 5: Solve for x
    x = 98,988,080,459,344,672/298,943,599.20
  6. Step 6: Final answer
    x = 331,126,275.07

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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.