Home / 290,059,395.07-435,101,099.23-85,587,470.32

Finding the Fourth Proportional to 290,059,395.07, 435,101,099.23 and 85,587,470.32

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Solution

The fourth proportional to 290,059,395.07, 435,101,099.23 and 85,587,470.32 is: 128,384,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,059,395.07 : 435,101,099.23 = 85,587,470.32 : x
  2. Step 2: Convert to fraction form
    290,059,395.07/435,101,099.23 = 85,587,470.32/x
  3. Step 3: Cross multiply
    290,059,395.07x = 435,101,099.23 × 85,587,470.32
  4. Step 4: Simplify right side
    290,059,395.07x = 37,239,202,413,943,560
  5. Step 5: Solve for x
    x = 37,239,202,413,943,560/290,059,395.07
  6. Step 6: Final answer
    x = 128,384,748.25

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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.