Home / 21,121,213,001.10-31,681,819,501.65-10,636,378,082.70

Finding the Fourth Proportional to 21,121,213,001.10, 31,681,819,501.65 and 10,636,378,082.70

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Solution

The fourth proportional to 21,121,213,001.10, 31,681,819,501.65 and 10,636,378,082.70 is: 15,954,567,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,213,001.10 : 31,681,819,501.65 = 10,636,378,082.70 : x
  2. Step 2: Convert to fraction form
    21,121,213,001.10/31,681,819,501.65 = 10,636,378,082.70/x
  3. Step 3: Cross multiply
    21,121,213,001.10x = 31,681,819,501.65 × 10,636,378,082.70
  4. Step 4: Simplify right side
    21,121,213,001.10x = 336,979,810,567,407,534,080
  5. Step 5: Solve for x
    x = 336,979,810,567,407,534,080/21,121,213,001.10
  6. Step 6: Final answer
    x = 15,954,567,124.05

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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.