Home / 21,248,312,480.66-29,312,080,235.85-12,668,688,232.88

Finding the Fourth Proportional to 21,248,312,480.66, 29,312,080,235.85 and 12,668,688,232.88

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Solution

The fourth proportional to 21,248,312,480.66, 29,312,080,235.85 and 12,668,688,232.88 is: 17,476,475,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,312,480.66 : 29,312,080,235.85 = 12,668,688,232.88 : x
  2. Step 2: Convert to fraction form
    21,248,312,480.66/29,312,080,235.85 = 12,668,688,232.88/x
  3. Step 3: Cross multiply
    21,248,312,480.66x = 29,312,080,235.85 × 12,668,688,232.88
  4. Step 4: Simplify right side
    21,248,312,480.66x = 371,345,605,965,147,275,264
  5. Step 5: Solve for x
    x = 371,345,605,965,147,275,264/21,248,312,480.66
  6. Step 6: Final answer
    x = 17,476,475,193.18

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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.