Home / 386,210,116.80-579,315,175.20-143,822,865.60

Finding the Fourth Proportional to 386,210,116.80, 579,315,175.20 and 143,822,865.60

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Solution

The fourth proportional to 386,210,116.80, 579,315,175.20 and 143,822,865.60 is: 215,734,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,210,116.80 : 579,315,175.20 = 143,822,865.60 : x
  2. Step 2: Convert to fraction form
    386,210,116.80/579,315,175.20 = 143,822,865.60/x
  3. Step 3: Cross multiply
    386,210,116.80x = 579,315,175.20 × 143,822,865.60
  4. Step 4: Simplify right side
    386,210,116.80x = 83,318,768,582,830,064
  5. Step 5: Solve for x
    x = 83,318,768,582,830,064/386,210,116.80
  6. Step 6: Final answer
    x = 215,734,298.40

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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.