Home / 21,248,312,491.16-29,312,080,250.32-12,668,688,243.36

Finding the Fourth Proportional to 21,248,312,491.16, 29,312,080,250.32 and 12,668,688,243.36

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Solution

The fourth proportional to 21,248,312,491.16, 29,312,080,250.32 and 12,668,688,243.36 is: 17,476,475,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,312,491.16 : 29,312,080,250.32 = 12,668,688,243.36 : x
  2. Step 2: Convert to fraction form
    21,248,312,491.16/29,312,080,250.32 = 12,668,688,243.36/x
  3. Step 3: Cross multiply
    21,248,312,491.16x = 29,312,080,250.32 × 12,668,688,243.36
  4. Step 4: Simplify right side
    21,248,312,491.16x = 371,345,606,455,653,826,560
  5. Step 5: Solve for x
    x = 371,345,606,455,653,826,560/21,248,312,491.16
  6. Step 6: Final answer
    x = 17,476,475,207.63

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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.