Home / 98,657,998.40-147,986,997.60-30,507,579.20

Finding the Fourth Proportional to 98,657,998.40, 147,986,997.60 and 30,507,579.20

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Solution

The fourth proportional to 98,657,998.40, 147,986,997.60 and 30,507,579.20 is: 45,761,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657,998.40 : 147,986,997.60 = 30,507,579.20 : x
  2. Step 2: Convert to fraction form
    98,657,998.40/147,986,997.60 = 30,507,579.20/x
  3. Step 3: Cross multiply
    98,657,998.40x = 147,986,997.60 × 30,507,579.20
  4. Step 4: Simplify right side
    98,657,998.40x = 4,514,725,049,852,210
  5. Step 5: Solve for x
    x = 4,514,725,049,852,210/98,657,998.40
  6. Step 6: Final answer
    x = 45,761,368.80

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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.