Home / 398,697,956.70-598,158,909.45-194,232,702.30

Finding the Fourth Proportional to 398,697,956.70, 598,158,909.45 and 194,232,702.30

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Solution

The fourth proportional to 398,697,956.70, 598,158,909.45 and 194,232,702.30 is: 291,403,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,697,956.70 : 598,158,909.45 = 194,232,702.30 : x
  2. Step 2: Convert to fraction form
    398,697,956.70/598,158,909.45 = 194,232,702.30/x
  3. Step 3: Cross multiply
    398,697,956.70x = 598,158,909.45 × 194,232,702.30
  4. Step 4: Simplify right side
    398,697,956.70x = 116,182,021,387,294,528
  5. Step 5: Solve for x
    x = 116,182,021,387,294,528/398,697,956.70
  6. Step 6: Final answer
    x = 291,403,603.74

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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.