Home / 689,562,032.40-1,034,846,933.40-485,488,688.40

Finding the Fourth Proportional to 689,562,032.40, 1,034,846,933.40 and 485,488,688.40

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Solution

The fourth proportional to 689,562,032.40, 1,034,846,933.40 and 485,488,688.40 is: 728,587,794.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,562,032.40 : 1,034,846,933.40 = 485,488,688.40 : x
  2. Step 2: Convert to fraction form
    689,562,032.40/1,034,846,933.40 = 485,488,688.40/x
  3. Step 3: Cross multiply
    689,562,032.40x = 1,034,846,933.40 × 485,488,688.40
  4. Step 4: Simplify right side
    689,562,032.40x = 502,406,480,391,128,128
  5. Step 5: Solve for x
    x = 502,406,480,391,128,128/689,562,032.40
  6. Step 6: Final answer
    x = 728,587,794.55

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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.