Home / 90,929,246.71-136,480,100.37-56,280,840.13

Finding the Fourth Proportional to 90,929,246.71, 136,480,100.37 and 56,280,840.13

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Solution

The fourth proportional to 90,929,246.71, 136,480,100.37 and 56,280,840.13 is: 84,474,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,929,246.71 : 136,480,100.37 = 56,280,840.13 : x
  2. Step 2: Convert to fraction form
    90,929,246.71/136,480,100.37 = 56,280,840.13/x
  3. Step 3: Cross multiply
    90,929,246.71x = 136,480,100.37 × 56,280,840.13
  4. Step 4: Simplify right side
    90,929,246.71x = 7,681,214,709,850,324
  5. Step 5: Solve for x
    x = 7,681,214,709,850,324/90,929,246.71
  6. Step 6: Final answer
    x = 84,474,632.62

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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.