Home / 13,209,264.04-18,228,916.42-7,407,921.22

Finding the Fourth Proportional to 13,209,264.04, 18,228,916.42 and 7,407,921.22

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Solution

The fourth proportional to 13,209,264.04, 18,228,916.42 and 7,407,921.22 is: 10,223,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,264.04 : 18,228,916.42 = 7,407,921.22 : x
  2. Step 2: Convert to fraction form
    13,209,264.04/18,228,916.42 = 7,407,921.22/x
  3. Step 3: Cross multiply
    13,209,264.04x = 18,228,916.42 × 7,407,921.22
  4. Step 4: Simplify right side
    13,209,264.04x = 135,038,376,769,590.78
  5. Step 5: Solve for x
    x = 135,038,376,769,590.78/13,209,264.04
  6. Step 6: Final answer
    x = 10,223,005.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.