Home / 3,386,132,291.61-5,079,852,537.57-1,287,445,521.64

Finding the Fourth Proportional to 3,386,132,291.61, 5,079,852,537.57 and 1,287,445,521.64

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Solution

The fourth proportional to 3,386,132,291.61, 5,079,852,537.57 and 1,287,445,521.64 is: 1,931,416,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386,132,291.61 : 5,079,852,537.57 = 1,287,445,521.64 : x
  2. Step 2: Convert to fraction form
    3,386,132,291.61/5,079,852,537.57 = 1,287,445,521.64/x
  3. Step 3: Cross multiply
    3,386,132,291.61x = 5,079,852,537.57 × 1,287,445,521.64
  4. Step 4: Simplify right side
    3,386,132,291.61x = 6,540,033,400,082,868,224
  5. Step 5: Solve for x
    x = 6,540,033,400,082,868,224/3,386,132,291.61
  6. Step 6: Final answer
    x = 1,931,416,978.68

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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.