Home / 918,876,315.24-1,268,156,518.98-522,458,702.34

Finding the Fourth Proportional to 918,876,315.24, 1,268,156,518.98 and 522,458,702.34

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Solution

The fourth proportional to 918,876,315.24, 1,268,156,518.98 and 522,458,702.34 is: 721,053,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,876,315.24 : 1,268,156,518.98 = 522,458,702.34 : x
  2. Step 2: Convert to fraction form
    918,876,315.24/1,268,156,518.98 = 522,458,702.34/x
  3. Step 3: Cross multiply
    918,876,315.24x = 1,268,156,518.98 × 522,458,702.34
  4. Step 4: Simplify right side
    918,876,315.24x = 662,559,409,263,961,600
  5. Step 5: Solve for x
    x = 662,559,409,263,961,600/918,876,315.24
  6. Step 6: Final answer
    x = 721,053,963.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.