Home / 1,279,201,097.42-1,913,262,368.78-753,316,645.38

Finding the Fourth Proportional to 1,279,201,097.42, 1,913,262,368.78 and 753,316,645.38

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Solution

The fourth proportional to 1,279,201,097.42, 1,913,262,368.78 and 753,316,645.38 is: 1,126,712,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,201,097.42 : 1,913,262,368.78 = 753,316,645.38 : x
  2. Step 2: Convert to fraction form
    1,279,201,097.42/1,913,262,368.78 = 753,316,645.38/x
  3. Step 3: Cross multiply
    1,279,201,097.42x = 1,913,262,368.78 × 753,316,645.38
  4. Step 4: Simplify right side
    1,279,201,097.42x = 1,441,292,389,381,142,016
  5. Step 5: Solve for x
    x = 1,441,292,389,381,142,016/1,279,201,097.42
  6. Step 6: Final answer
    x = 1,126,712,908.77

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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.