Home / 826,595,390.13-1,140,701,700.75-455,317,421.49

Finding the Fourth Proportional to 826,595,390.13, 1,140,701,700.75 and 455,317,421.49

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Solution

The fourth proportional to 826,595,390.13, 1,140,701,700.75 and 455,317,421.49 is: 628,338,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,595,390.13 : 1,140,701,700.75 = 455,317,421.49 : x
  2. Step 2: Convert to fraction form
    826,595,390.13/1,140,701,700.75 = 455,317,421.49/x
  3. Step 3: Cross multiply
    826,595,390.13x = 1,140,701,700.75 × 455,317,421.49
  4. Step 4: Simplify right side
    826,595,390.13x = 519,381,357,074,747,584
  5. Step 5: Solve for x
    x = 519,381,357,074,747,584/826,595,390.13
  6. Step 6: Final answer
    x = 628,338,076.01

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Double scale
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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.