Home / 13,145,783.40-19,718,675.10-3,688,938.60

Finding the Fourth Proportional to 13,145,783.40, 19,718,675.10 and 3,688,938.60

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Solution

The fourth proportional to 13,145,783.40, 19,718,675.10 and 3,688,938.60 is: 5,533,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,783.40 : 19,718,675.10 = 3,688,938.60 : x
  2. Step 2: Convert to fraction form
    13,145,783.40/19,718,675.10 = 3,688,938.60/x
  3. Step 3: Cross multiply
    13,145,783.40x = 19,718,675.10 × 3,688,938.60
  4. Step 4: Simplify right side
    13,145,783.40x = 72,740,981,717,248.88
  5. Step 5: Solve for x
    x = 72,740,981,717,248.88/13,145,783.40
  6. Step 6: Final answer
    x = 5,533,407.90

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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.