Home / 826,685,385.32-1,140,825,328.76-455,407,416.69

Finding the Fourth Proportional to 826,685,385.32, 1,140,825,328.76 and 455,407,416.69

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Solution

The fourth proportional to 826,685,385.32, 1,140,825,328.76 and 455,407,416.69 is: 628,461,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,385.32 : 1,140,825,328.76 = 455,407,416.69 : x
  2. Step 2: Convert to fraction form
    826,685,385.32/1,140,825,328.76 = 455,407,416.69/x
  3. Step 3: Cross multiply
    826,685,385.32x = 1,140,825,328.76 × 455,407,416.69
  4. Step 4: Simplify right side
    826,685,385.32x = 519,540,315,862,834,560
  5. Step 5: Solve for x
    x = 519,540,315,862,834,560/826,685,385.32
  6. Step 6: Final answer
    x = 628,461,957.95

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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.