Home / 156,333,641.44-215,739,630.48-86,718,301.60

Finding the Fourth Proportional to 156,333,641.44, 215,739,630.48 and 86,718,301.60

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Solution

The fourth proportional to 156,333,641.44, 215,739,630.48 and 86,718,301.60 is: 119,670,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,333,641.44 : 215,739,630.48 = 86,718,301.60 : x
  2. Step 2: Convert to fraction form
    156,333,641.44/215,739,630.48 = 86,718,301.60/x
  3. Step 3: Cross multiply
    156,333,641.44x = 215,739,630.48 × 86,718,301.60
  4. Step 4: Simplify right side
    156,333,641.44x = 18,708,574,343,037,192
  5. Step 5: Solve for x
    x = 18,708,574,343,037,192/156,333,641.44
  6. Step 6: Final answer
    x = 119,670,815.38

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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.