Home / 851,702,446.31-1,278,003,779.15-604,306,538.31

Finding the Fourth Proportional to 851,702,446.31, 1,278,003,779.15 and 604,306,538.31

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Solution

The fourth proportional to 851,702,446.31, 1,278,003,779.15 and 604,306,538.31 is: 906,779,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,702,446.31 : 1,278,003,779.15 = 604,306,538.31 : x
  2. Step 2: Convert to fraction form
    851,702,446.31/1,278,003,779.15 = 604,306,538.31/x
  3. Step 3: Cross multiply
    851,702,446.31x = 1,278,003,779.15 × 604,306,538.31
  4. Step 4: Simplify right side
    851,702,446.31x = 772,306,039,722,212,608
  5. Step 5: Solve for x
    x = 772,306,039,722,212,608/851,702,446.31
  6. Step 6: Final answer
    x = 906,779,172.78

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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.