Home / 726,772,492.80-1,090,300,456.80-312,248,512.80

Finding the Fourth Proportional to 726,772,492.80, 1,090,300,456.80 and 312,248,512.80

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Solution

The fourth proportional to 726,772,492.80, 1,090,300,456.80 and 312,248,512.80 is: 468,433,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,772,492.80 : 1,090,300,456.80 = 312,248,512.80 : x
  2. Step 2: Convert to fraction form
    726,772,492.80/1,090,300,456.80 = 312,248,512.80/x
  3. Step 3: Cross multiply
    726,772,492.80x = 1,090,300,456.80 × 312,248,512.80
  4. Step 4: Simplify right side
    726,772,492.80x = 340,444,696,140,960,640
  5. Step 5: Solve for x
    x = 340,444,696,140,960,640/726,772,492.80
  6. Step 6: Final answer
    x = 468,433,656.36

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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.