Home / 130,170,712.32-179,636,938.13-71,437,181.60

Finding the Fourth Proportional to 130,170,712.32, 179,636,938.13 and 71,437,181.60

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Solution

The fourth proportional to 130,170,712.32, 179,636,938.13 and 71,437,181.60 is: 98,584,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,170,712.32 : 179,636,938.13 = 71,437,181.60 : x
  2. Step 2: Convert to fraction form
    130,170,712.32/179,636,938.13 = 71,437,181.60/x
  3. Step 3: Cross multiply
    130,170,712.32x = 179,636,938.13 × 71,437,181.60
  4. Step 4: Simplify right side
    130,170,712.32x = 12,832,756,570,005,404
  5. Step 5: Solve for x
    x = 12,832,756,570,005,404/130,170,712.32
  6. Step 6: Final answer
    x = 98,584,054.29

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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.