Home / 55,408,138.40-83,112,207.60-45,330,442.40

Finding the Fourth Proportional to 55,408,138.40, 83,112,207.60 and 45,330,442.40

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Solution

The fourth proportional to 55,408,138.40, 83,112,207.60 and 45,330,442.40 is: 67,995,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,408,138.40 : 83,112,207.60 = 45,330,442.40 : x
  2. Step 2: Convert to fraction form
    55,408,138.40/83,112,207.60 = 45,330,442.40/x
  3. Step 3: Cross multiply
    55,408,138.40x = 83,112,207.60 × 45,330,442.40
  4. Step 4: Simplify right side
    55,408,138.40x = 3,767,513,139,348,642
  5. Step 5: Solve for x
    x = 3,767,513,139,348,642/55,408,138.40
  6. Step 6: Final answer
    x = 67,995,663.60

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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.