Home / 390,986,269,706.98-586,162,915,212.65-122,236,913,899.28

Finding the Fourth Proportional to 390,986,269,706.98, 586,162,915,212.65 and 122,236,913,899.28

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Solution

The fourth proportional to 390,986,269,706.98, 586,162,915,212.65 and 122,236,913,899.28 is: 183,256,424,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,986,269,706.98 : 586,162,915,212.65 = 122,236,913,899.28 : x
  2. Step 2: Convert to fraction form
    390,986,269,706.98/586,162,915,212.65 = 122,236,913,899.28/x
  3. Step 3: Cross multiply
    390,986,269,706.98x = 586,162,915,212.65 × 122,236,913,899.28
  4. Step 4: Simplify right side
    390,986,269,706.98x = 71,650,745,797,799,663,632,384
  5. Step 5: Solve for x
    x = 71,650,745,797,799,663,632,384/390,986,269,706.98
  6. Step 6: Final answer
    x = 183,256,424,455.77

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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.