Home / 1,121,641,085.44-1,680,957,730.84-872,946,646.46

Finding the Fourth Proportional to 1,121,641,085.44, 1,680,957,730.84 and 872,946,646.46

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Solution

The fourth proportional to 1,121,641,085.44, 1,680,957,730.84 and 872,946,646.46 is: 1,308,249,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,641,085.44 : 1,680,957,730.84 = 872,946,646.46 : x
  2. Step 2: Convert to fraction form
    1,121,641,085.44/1,680,957,730.84 = 872,946,646.46/x
  3. Step 3: Cross multiply
    1,121,641,085.44x = 1,680,957,730.84 × 872,946,646.46
  4. Step 4: Simplify right side
    1,121,641,085.44x = 1,467,386,413,977,789,184
  5. Step 5: Solve for x
    x = 1,467,386,413,977,789,184/1,121,641,085.44
  6. Step 6: Final answer
    x = 1,308,249,522.09

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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.