Home / 13,119,772.70-19,685,342.85-7,047,419.60

Finding the Fourth Proportional to 13,119,772.70, 19,685,342.85 and 7,047,419.60

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Solution

The fourth proportional to 13,119,772.70, 19,685,342.85 and 7,047,419.60 is: 10,574,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119,772.70 : 19,685,342.85 = 7,047,419.60 : x
  2. Step 2: Convert to fraction form
    13,119,772.70/19,685,342.85 = 7,047,419.60/x
  3. Step 3: Cross multiply
    13,119,772.70x = 19,685,342.85 × 7,047,419.60
  4. Step 4: Simplify right side
    13,119,772.70x = 138,730,871,033,809.86
  5. Step 5: Solve for x
    x = 138,730,871,033,809.86/13,119,772.70
  6. Step 6: Final answer
    x = 10,574,182.51

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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.