Home / 138,698,793.45-208,048,190.18-70,674,345.45

Finding the Fourth Proportional to 138,698,793.45, 208,048,190.18 and 70,674,345.45

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Solution

The fourth proportional to 138,698,793.45, 208,048,190.18 and 70,674,345.45 is: 106,011,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,698,793.45 : 208,048,190.18 = 70,674,345.45 : x
  2. Step 2: Convert to fraction form
    138,698,793.45/208,048,190.18 = 70,674,345.45/x
  3. Step 3: Cross multiply
    138,698,793.45x = 208,048,190.18 × 70,674,345.45
  4. Step 4: Simplify right side
    138,698,793.45x = 14,703,669,662,675,248
  5. Step 5: Solve for x
    x = 14,703,669,662,675,248/138,698,793.45
  6. Step 6: Final answer
    x = 106,011,518.18

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Similar ratio
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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.