Home / 120,252,607.80-180,378,911.70-103,033,919.40

Finding the Fourth Proportional to 120,252,607.80, 180,378,911.70 and 103,033,919.40

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Solution

The fourth proportional to 120,252,607.80, 180,378,911.70 and 103,033,919.40 is: 154,550,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,252,607.80 : 180,378,911.70 = 103,033,919.40 : x
  2. Step 2: Convert to fraction form
    120,252,607.80/180,378,911.70 = 103,033,919.40/x
  3. Step 3: Cross multiply
    120,252,607.80x = 180,378,911.70 × 103,033,919.40
  4. Step 4: Simplify right side
    120,252,607.80x = 18,585,146,249,557,516
  5. Step 5: Solve for x
    x = 18,585,146,249,557,516/120,252,607.80
  6. Step 6: Final answer
    x = 154,550,879.10

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1.5x scale

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.