Home / 12,908,874.80-19,363,312.20-12,342,004.40

Finding the Fourth Proportional to 12,908,874.80, 19,363,312.20 and 12,342,004.40

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Solution

The fourth proportional to 12,908,874.80, 19,363,312.20 and 12,342,004.40 is: 18,513,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908,874.80 : 19,363,312.20 = 12,342,004.40 : x
  2. Step 2: Convert to fraction form
    12,908,874.80/19,363,312.20 = 12,342,004.40/x
  3. Step 3: Cross multiply
    12,908,874.80x = 19,363,312.20 × 12,342,004.40
  4. Step 4: Simplify right side
    12,908,874.80x = 238,982,084,370,973.69
  5. Step 5: Solve for x
    x = 238,982,084,370,973.69/12,908,874.80
  6. Step 6: Final answer
    x = 18,513,006.60

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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.