Home / 399,172,915.80-598,759,373.70-194,832,077.40

Finding the Fourth Proportional to 399,172,915.80, 598,759,373.70 and 194,832,077.40

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Solution

The fourth proportional to 399,172,915.80, 598,759,373.70 and 194,832,077.40 is: 292,248,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,172,915.80 : 598,759,373.70 = 194,832,077.40 : x
  2. Step 2: Convert to fraction form
    399,172,915.80/598,759,373.70 = 194,832,077.40/x
  3. Step 3: Cross multiply
    399,172,915.80x = 598,759,373.70 × 194,832,077.40
  4. Step 4: Simplify right side
    399,172,915.80x = 116,657,532,640,693,936
  5. Step 5: Solve for x
    x = 116,657,532,640,693,936/399,172,915.80
  6. Step 6: Final answer
    x = 292,248,116.10

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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.