Home / 160,513,041.80-221,521,659-90,910,804.52

Finding the Fourth Proportional to 160,513,041.80, 221,521,659 and 90,910,804.52

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Solution

The fourth proportional to 160,513,041.80, 221,521,659 and 90,910,804.52 is: 125,464,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,513,041.80 : 221,521,659 = 90,910,804.52 : x
  2. Step 2: Convert to fraction form
    160,513,041.80/221,521,659 = 90,910,804.52/x
  3. Step 3: Cross multiply
    160,513,041.80x = 221,521,659 × 90,910,804.52
  4. Step 4: Simplify right side
    160,513,041.80x = 20,138,712,238,295,096
  5. Step 5: Solve for x
    x = 20,138,712,238,295,096/160,513,041.80
  6. Step 6: Final answer
    x = 125,464,647.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.