Home / 450,778,709.40-676,079,417.70-143,988,137.88

Finding the Fourth Proportional to 450,778,709.40, 676,079,417.70 and 143,988,137.88

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Solution

The fourth proportional to 450,778,709.40, 676,079,417.70 and 143,988,137.88 is: 215,953,891.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,778,709.40 : 676,079,417.70 = 143,988,137.88 : x
  2. Step 2: Convert to fraction form
    450,778,709.40/676,079,417.70 = 143,988,137.88/x
  3. Step 3: Cross multiply
    450,778,709.40x = 676,079,417.70 × 143,988,137.88
  4. Step 4: Simplify right side
    450,778,709.40x = 97,347,416,413,617,712
  5. Step 5: Solve for x
    x = 97,347,416,413,617,712/450,778,709.40
  6. Step 6: Final answer
    x = 215,953,891.31

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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.