Home / 804,815,999.90-1,207,223,999.85-417,395,510.90

Finding the Fourth Proportional to 804,815,999.90, 1,207,223,999.85 and 417,395,510.90

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Solution

The fourth proportional to 804,815,999.90, 1,207,223,999.85 and 417,395,510.90 is: 626,093,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,815,999.90 : 1,207,223,999.85 = 417,395,510.90 : x
  2. Step 2: Convert to fraction form
    804,815,999.90/1,207,223,999.85 = 417,395,510.90/x
  3. Step 3: Cross multiply
    804,815,999.90x = 1,207,223,999.85 × 417,395,510.90
  4. Step 4: Simplify right side
    804,815,999.90x = 503,889,878,188,132,224
  5. Step 5: Solve for x
    x = 503,889,878,188,132,224/804,815,999.90
  6. Step 6: Final answer
    x = 626,093,266.35

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1.5x scale

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.