Home / 10,255,759.45-14,157,305.85-6,390,190.47

Finding the Fourth Proportional to 10,255,759.45, 14,157,305.85 and 6,390,190.47

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Solution

The fourth proportional to 10,255,759.45, 14,157,305.85 and 6,390,190.47 is: 8,821,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255,759.45 : 14,157,305.85 = 6,390,190.47 : x
  2. Step 2: Convert to fraction form
    10,255,759.45/14,157,305.85 = 6,390,190.47/x
  3. Step 3: Cross multiply
    10,255,759.45x = 14,157,305.85 × 6,390,190.47
  4. Step 4: Simplify right side
    10,255,759.45x = 90,467,881,000,598.36
  5. Step 5: Solve for x
    x = 90,467,881,000,598.36/10,255,759.45
  6. Step 6: Final answer
    x = 8,821,178.14

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1.5x scale

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.