Home / 1,939,368,572.70-2,909,052,897.66-465,508,381.74

Finding the Fourth Proportional to 1,939,368,572.70, 2,909,052,897.66 and 465,508,381.74

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Solution

The fourth proportional to 1,939,368,572.70, 2,909,052,897.66 and 465,508,381.74 is: 698,262,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,368,572.70 : 2,909,052,897.66 = 465,508,381.74 : x
  2. Step 2: Convert to fraction form
    1,939,368,572.70/2,909,052,897.66 = 465,508,381.74/x
  3. Step 3: Cross multiply
    1,939,368,572.70x = 2,909,052,897.66 × 465,508,381.74
  4. Step 4: Simplify right side
    1,939,368,572.70x = 1,354,188,506,785,764,352
  5. Step 5: Solve for x
    x = 1,354,188,506,785,764,352/1,939,368,572.70
  6. Step 6: Final answer
    x = 698,262,581.88

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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.