Home / 915,942,833.09-1,374,495,360.06-391,315,887.60

Finding the Fourth Proportional to 915,942,833.09, 1,374,495,360.06 and 391,315,887.60

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Solution

The fourth proportional to 915,942,833.09, 1,374,495,360.06 and 391,315,887.60 is: 587,222,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,942,833.09 : 1,374,495,360.06 = 391,315,887.60 : x
  2. Step 2: Convert to fraction form
    915,942,833.09/1,374,495,360.06 = 391,315,887.60/x
  3. Step 3: Cross multiply
    915,942,833.09x = 1,374,495,360.06 × 391,315,887.60
  4. Step 4: Simplify right side
    915,942,833.09x = 537,861,871,820,293,184
  5. Step 5: Solve for x
    x = 537,861,871,820,293,184/915,942,833.09
  6. Step 6: Final answer
    x = 587,222,097.70

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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.