Home / 698,936,001.70-1,048,404,002.55-426,838,209.70

Finding the Fourth Proportional to 698,936,001.70, 1,048,404,002.55 and 426,838,209.70

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Solution

The fourth proportional to 698,936,001.70, 1,048,404,002.55 and 426,838,209.70 is: 640,257,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,936,001.70 : 1,048,404,002.55 = 426,838,209.70 : x
  2. Step 2: Convert to fraction form
    698,936,001.70/1,048,404,002.55 = 426,838,209.70/x
  3. Step 3: Cross multiply
    698,936,001.70x = 1,048,404,002.55 × 426,838,209.70
  4. Step 4: Simplify right side
    698,936,001.70x = 447,498,887,490,756,224
  5. Step 5: Solve for x
    x = 447,498,887,490,756,224/698,936,001.70
  6. Step 6: Final answer
    x = 640,257,314.55

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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.