Home / 153,687,977.85-212,088,775.32-83,123,666.85

Finding the Fourth Proportional to 153,687,977.85, 212,088,775.32 and 83,123,666.85

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Solution

The fourth proportional to 153,687,977.85, 212,088,775.32 and 83,123,666.85 is: 114,710,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,687,977.85 : 212,088,775.32 = 83,123,666.85 : x
  2. Step 2: Convert to fraction form
    153,687,977.85/212,088,775.32 = 83,123,666.85/x
  3. Step 3: Cross multiply
    153,687,977.85x = 212,088,775.32 × 83,123,666.85
  4. Step 4: Simplify right side
    153,687,977.85x = 17,629,596,702,324,180
  5. Step 5: Solve for x
    x = 17,629,596,702,324,180/153,687,977.85
  6. Step 6: Final answer
    x = 114,710,317.29

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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.