Home / 698,936,002.70-1,048,404,004.05-426,838,210.70

Finding the Fourth Proportional to 698,936,002.70, 1,048,404,004.05 and 426,838,210.70

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Solution

The fourth proportional to 698,936,002.70, 1,048,404,004.05 and 426,838,210.70 is: 640,257,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,936,002.70 : 1,048,404,004.05 = 426,838,210.70 : x
  2. Step 2: Convert to fraction form
    698,936,002.70/1,048,404,004.05 = 426,838,210.70/x
  3. Step 3: Cross multiply
    698,936,002.70x = 1,048,404,004.05 × 426,838,210.70
  4. Step 4: Simplify right side
    698,936,002.70x = 447,498,889,179,417,536
  5. Step 5: Solve for x
    x = 447,498,889,179,417,536/698,936,002.70
  6. Step 6: Final answer
    x = 640,257,316.05

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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.