Home / 153,900,242.49-212,381,370.72-83,334,360.39

Finding the Fourth Proportional to 153,900,242.49, 212,381,370.72 and 83,334,360.39

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Solution

The fourth proportional to 153,900,242.49, 212,381,370.72 and 83,334,360.39 is: 115,000,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,900,242.49 : 212,381,370.72 = 83,334,360.39 : x
  2. Step 2: Convert to fraction form
    153,900,242.49/212,381,370.72 = 83,334,360.39/x
  3. Step 3: Cross multiply
    153,900,242.49x = 212,381,370.72 × 83,334,360.39
  4. Step 4: Simplify right side
    153,900,242.49x = 17,698,665,687,702,674
  5. Step 5: Solve for x
    x = 17,698,665,687,702,674/153,900,242.49
  6. Step 6: Final answer
    x = 115,000,895.39

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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.