Home / 872,888,638.60-1,309,578,601.74-381,645,048.52

Finding the Fourth Proportional to 872,888,638.60, 1,309,578,601.74 and 381,645,048.52

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Solution

The fourth proportional to 872,888,638.60, 1,309,578,601.74 and 381,645,048.52 is: 572,574,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,888,638.60 : 1,309,578,601.74 = 381,645,048.52 : x
  2. Step 2: Convert to fraction form
    872,888,638.60/1,309,578,601.74 = 381,645,048.52/x
  3. Step 3: Cross multiply
    872,888,638.60x = 1,309,578,601.74 × 381,645,048.52
  4. Step 4: Simplify right side
    872,888,638.60x = 499,794,189,001,816,064
  5. Step 5: Solve for x
    x = 499,794,189,001,816,064/872,888,638.60
  6. Step 6: Final answer
    x = 572,574,973.37

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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.