Home / 153,912,254.25-212,399,115.75-83,347,986.22

Finding the Fourth Proportional to 153,912,254.25, 212,399,115.75 and 83,347,986.22

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Solution

The fourth proportional to 153,912,254.25, 212,399,115.75 and 83,347,986.22 is: 115,020,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,912,254.25 : 212,399,115.75 = 83,347,986.22 : x
  2. Step 2: Convert to fraction form
    153,912,254.25/212,399,115.75 = 83,347,986.22/x
  3. Step 3: Cross multiply
    153,912,254.25x = 212,399,115.75 × 83,347,986.22
  4. Step 4: Simplify right side
    153,912,254.25x = 17,703,038,572,671,184
  5. Step 5: Solve for x
    x = 17,703,038,572,671,184/153,912,254.25
  6. Step 6: Final answer
    x = 115,020,331.93

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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.