Home / 299,088,931.96-448,791,461.16-212,211,905.30

Finding the Fourth Proportional to 299,088,931.96, 448,791,461.16 and 212,211,905.30

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Solution

The fourth proportional to 299,088,931.96, 448,791,461.16 and 212,211,905.30 is: 318,430,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,088,931.96 : 448,791,461.16 = 212,211,905.30 : x
  2. Step 2: Convert to fraction form
    299,088,931.96/448,791,461.16 = 212,211,905.30/x
  3. Step 3: Cross multiply
    299,088,931.96x = 448,791,461.16 × 212,211,905.30
  4. Step 4: Simplify right side
    299,088,931.96x = 95,238,891,055,134,560
  5. Step 5: Solve for x
    x = 95,238,891,055,134,560/299,088,931.96
  6. Step 6: Final answer
    x = 318,430,008.20

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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.