Home / 97,009,939.80-145,514,909.70-66,398,938.20

Finding the Fourth Proportional to 97,009,939.80, 145,514,909.70 and 66,398,938.20

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Solution

The fourth proportional to 97,009,939.80, 145,514,909.70 and 66,398,938.20 is: 99,598,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,009,939.80 : 145,514,909.70 = 66,398,938.20 : x
  2. Step 2: Convert to fraction form
    97,009,939.80/145,514,909.70 = 66,398,938.20/x
  3. Step 3: Cross multiply
    97,009,939.80x = 145,514,909.70 × 66,398,938.20
  4. Step 4: Simplify right side
    97,009,939.80x = 9,662,035,496,348,880
  5. Step 5: Solve for x
    x = 9,662,035,496,348,880/97,009,939.80
  6. Step 6: Final answer
    x = 99,598,407.30

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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.