Home / 165,307,535.40-247,961,303.10-145,152,143.40

Finding the Fourth Proportional to 165,307,535.40, 247,961,303.10 and 145,152,143.40

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Solution

The fourth proportional to 165,307,535.40, 247,961,303.10 and 145,152,143.40 is: 217,728,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,307,535.40 : 247,961,303.10 = 145,152,143.40 : x
  2. Step 2: Convert to fraction form
    165,307,535.40/247,961,303.10 = 145,152,143.40/x
  3. Step 3: Cross multiply
    165,307,535.40x = 247,961,303.10 × 145,152,143.40
  4. Step 4: Simplify right side
    165,307,535.40x = 35,992,114,625,222,064
  5. Step 5: Solve for x
    x = 35,992,114,625,222,064/165,307,535.40
  6. Step 6: Final answer
    x = 217,728,215.10

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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.