Home / 315,235,240.80-472,056,598.80-206,943,554.40

Finding the Fourth Proportional to 315,235,240.80, 472,056,598.80 and 206,943,554.40

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Solution

The fourth proportional to 315,235,240.80, 472,056,598.80 and 206,943,554.40 is: 309,892,606.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,235,240.80 : 472,056,598.80 = 206,943,554.40 : x
  2. Step 2: Convert to fraction form
    315,235,240.80/472,056,598.80 = 206,943,554.40/x
  3. Step 3: Cross multiply
    315,235,240.80x = 472,056,598.80 × 206,943,554.40
  4. Step 4: Simplify right side
    315,235,240.80x = 97,689,070,433,646,784
  5. Step 5: Solve for x
    x = 97,689,070,433,646,784/315,235,240.80
  6. Step 6: Final answer
    x = 309,892,606.50

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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.