Home / 1,140,943,124.92-1,574,500,318.24-639,155,440.74

Finding the Fourth Proportional to 1,140,943,124.92, 1,574,500,318.24 and 639,155,440.74

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Solution

The fourth proportional to 1,140,943,124.92, 1,574,500,318.24 and 639,155,440.74 is: 882,033,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,943,124.92 : 1,574,500,318.24 = 639,155,440.74 : x
  2. Step 2: Convert to fraction form
    1,140,943,124.92/1,574,500,318.24 = 639,155,440.74/x
  3. Step 3: Cross multiply
    1,140,943,124.92x = 1,574,500,318.24 × 639,155,440.74
  4. Step 4: Simplify right side
    1,140,943,124.92x = 1,006,350,444,842,084,992
  5. Step 5: Solve for x
    x = 1,006,350,444,842,084,992/1,140,943,124.92
  6. Step 6: Final answer
    x = 882,033,839.26

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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.