Home / 153,912,253.30-212,399,114.43-83,347,985.27

Finding the Fourth Proportional to 153,912,253.30, 212,399,114.43 and 83,347,985.27

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Solution

The fourth proportional to 153,912,253.30, 212,399,114.43 and 83,347,985.27 is: 115,020,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,912,253.30 : 212,399,114.43 = 83,347,985.27 : x
  2. Step 2: Convert to fraction form
    153,912,253.30/212,399,114.43 = 83,347,985.27/x
  3. Step 3: Cross multiply
    153,912,253.30x = 212,399,114.43 × 83,347,985.27
  4. Step 4: Simplify right side
    153,912,253.30x = 17,703,038,261,716,236
  5. Step 5: Solve for x
    x = 17,703,038,261,716,236/153,912,253.30
  6. Step 6: Final answer
    x = 115,020,330.63

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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.