Home / 1,581,385,005.07-2,182,307,541.42-866,919,289.48

Finding the Fourth Proportional to 1,581,385,005.07, 2,182,307,541.42 and 866,919,289.48

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Solution

The fourth proportional to 1,581,385,005.07, 2,182,307,541.42 and 866,919,289.48 is: 1,196,346,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,385,005.07 : 2,182,307,541.42 = 866,919,289.48 : x
  2. Step 2: Convert to fraction form
    1,581,385,005.07/2,182,307,541.42 = 866,919,289.48/x
  3. Step 3: Cross multiply
    1,581,385,005.07x = 2,182,307,541.42 × 866,919,289.48
  4. Step 4: Simplify right side
    1,581,385,005.07x = 1,891,884,503,234,672,128
  5. Step 5: Solve for x
    x = 1,891,884,503,234,672,128/1,581,385,005.07
  6. Step 6: Final answer
    x = 1,196,346,555.18

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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.