Home / 390,986,269,705.48-586,162,915,210.40-122,236,913,897.78

Finding the Fourth Proportional to 390,986,269,705.48, 586,162,915,210.40 and 122,236,913,897.78

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Solution

The fourth proportional to 390,986,269,705.48, 586,162,915,210.40 and 122,236,913,897.78 is: 183,256,424,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,986,269,705.48 : 586,162,915,210.40 = 122,236,913,897.78 : x
  2. Step 2: Convert to fraction form
    390,986,269,705.48/586,162,915,210.40 = 122,236,913,897.78/x
  3. Step 3: Cross multiply
    390,986,269,705.48x = 586,162,915,210.40 × 122,236,913,897.78
  4. Step 4: Simplify right side
    390,986,269,705.48x = 71,650,745,796,645,382,782,976
  5. Step 5: Solve for x
    x = 71,650,745,796,645,382,782,976/390,986,269,705.48
  6. Step 6: Final answer
    x = 183,256,424,453.52

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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.