Home / 757,491,478.96-1,135,232,729.28-389,011,547.20

Finding the Fourth Proportional to 757,491,478.96, 1,135,232,729.28 and 389,011,547.20

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Solution

The fourth proportional to 757,491,478.96, 1,135,232,729.28 and 389,011,547.20 is: 583,001,463.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,491,478.96 : 1,135,232,729.28 = 389,011,547.20 : x
  2. Step 2: Convert to fraction form
    757,491,478.96/1,135,232,729.28 = 389,011,547.20/x
  3. Step 3: Cross multiply
    757,491,478.96x = 1,135,232,729.28 × 389,011,547.20
  4. Step 4: Simplify right side
    757,491,478.96x = 441,618,640,449,291,520
  5. Step 5: Solve for x
    x = 441,618,640,449,291,520/757,491,478.96
  6. Step 6: Final answer
    x = 583,001,463.01

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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.