Home / 868,901,999.40-1,303,352,999.10-501,569,980.20

Finding the Fourth Proportional to 868,901,999.40, 1,303,352,999.10 and 501,569,980.20

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Solution

The fourth proportional to 868,901,999.40, 1,303,352,999.10 and 501,569,980.20 is: 752,354,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,901,999.40 : 1,303,352,999.10 = 501,569,980.20 : x
  2. Step 2: Convert to fraction form
    868,901,999.40/1,303,352,999.10 = 501,569,980.20/x
  3. Step 3: Cross multiply
    868,901,999.40x = 1,303,352,999.10 × 501,569,980.20
  4. Step 4: Simplify right side
    868,901,999.40x = 653,722,737,952,197,504
  5. Step 5: Solve for x
    x = 653,722,737,952,197,504/868,901,999.40
  6. Step 6: Final answer
    x = 752,354,970.30

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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.