Home / 12,938,572.80-19,407,859.20-10,947,916.80

Finding the Fourth Proportional to 12,938,572.80, 19,407,859.20 and 10,947,916.80

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Solution

The fourth proportional to 12,938,572.80, 19,407,859.20 and 10,947,916.80 is: 16,421,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,572.80 : 19,407,859.20 = 10,947,916.80 : x
  2. Step 2: Convert to fraction form
    12,938,572.80/19,407,859.20 = 10,947,916.80/x
  3. Step 3: Cross multiply
    12,938,572.80x = 19,407,859.20 × 10,947,916.80
  4. Step 4: Simplify right side
    12,938,572.80x = 212,475,627,787,714.56
  5. Step 5: Solve for x
    x = 212,475,627,787,714.56/12,938,572.80
  6. Step 6: Final answer
    x = 16,421,875.20

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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.