Home / 103,204,319.81-142,421,981.47-56,794,573.78

Finding the Fourth Proportional to 103,204,319.81, 142,421,981.47 and 56,794,573.78

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Solution

The fourth proportional to 103,204,319.81, 142,421,981.47 and 56,794,573.78 is: 78,376,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,204,319.81 : 142,421,981.47 = 56,794,573.78 : x
  2. Step 2: Convert to fraction form
    103,204,319.81/142,421,981.47 = 56,794,573.78/x
  3. Step 3: Cross multiply
    103,204,319.81x = 142,421,981.47 × 56,794,573.78
  4. Step 4: Simplify right side
    103,204,319.81x = 8,088,795,733,993,667
  5. Step 5: Solve for x
    x = 8,088,795,733,993,667/103,204,319.81
  6. Step 6: Final answer
    x = 78,376,522.89

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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.