Home / 840,237,229.10-1,159,629,053.63-478,219,211.34

Finding the Fourth Proportional to 840,237,229.10, 1,159,629,053.63 and 478,219,211.34

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Solution

The fourth proportional to 840,237,229.10, 1,159,629,053.63 and 478,219,211.34 is: 660,000,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,237,229.10 : 1,159,629,053.63 = 478,219,211.34 : x
  2. Step 2: Convert to fraction form
    840,237,229.10/1,159,629,053.63 = 478,219,211.34/x
  3. Step 3: Cross multiply
    840,237,229.10x = 1,159,629,053.63 × 478,219,211.34
  4. Step 4: Simplify right side
    840,237,229.10x = 554,556,891,471,498,048
  5. Step 5: Solve for x
    x = 554,556,891,471,498,048/840,237,229.10
  6. Step 6: Final answer
    x = 660,000,381.16

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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.