Home / 160,669,014-221,707,746.32-90,107,488.80

Finding the Fourth Proportional to 160,669,014, 221,707,746.32 and 90,107,488.80

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Solution

The fourth proportional to 160,669,014, 221,707,746.32 and 90,107,488.80 is: 124,339,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,669,014 : 221,707,746.32 = 90,107,488.80 : x
  2. Step 2: Convert to fraction form
    160,669,014/221,707,746.32 = 90,107,488.80/x
  3. Step 3: Cross multiply
    160,669,014x = 221,707,746.32 × 90,107,488.80
  4. Step 4: Simplify right side
    160,669,014x = 19,977,528,268,402,640
  5. Step 5: Solve for x
    x = 19,977,528,268,402,640/160,669,014
  6. Step 6: Final answer
    x = 124,339,645.65

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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.