Home / 673,227,568.28-928,983,237.90-390,914,824.16

Finding the Fourth Proportional to 673,227,568.28, 928,983,237.90 and 390,914,824.16

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Solution

The fourth proportional to 673,227,568.28, 928,983,237.90 and 390,914,824.16 is: 539,421,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,227,568.28 : 928,983,237.90 = 390,914,824.16 : x
  2. Step 2: Convert to fraction form
    673,227,568.28/928,983,237.90 = 390,914,824.16/x
  3. Step 3: Cross multiply
    673,227,568.28x = 928,983,237.90 × 390,914,824.16
  4. Step 4: Simplify right side
    673,227,568.28x = 363,153,319,091,265,984
  5. Step 5: Solve for x
    x = 363,153,319,091,265,984/673,227,568.28
  6. Step 6: Final answer
    x = 539,421,343.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.