Home / 13,209,270.32-18,228,925.05-7,407,927.50

Finding the Fourth Proportional to 13,209,270.32, 18,228,925.05 and 7,407,927.50

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Solution

The fourth proportional to 13,209,270.32, 18,228,925.05 and 7,407,927.50 is: 10,223,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,270.32 : 18,228,925.05 = 7,407,927.50 : x
  2. Step 2: Convert to fraction form
    13,209,270.32/18,228,925.05 = 7,407,927.50/x
  3. Step 3: Cross multiply
    13,209,270.32x = 18,228,925.05 × 7,407,927.50
  4. Step 4: Simplify right side
    13,209,270.32x = 135,038,555,173,333.88
  5. Step 5: Solve for x
    x = 135,038,555,173,333.88/13,209,270.32
  6. Step 6: Final answer
    x = 10,223,013.98

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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.