Home / 77,343,153.55-106,731,421.98-42,535,856.63

Finding the Fourth Proportional to 77,343,153.55, 106,731,421.98 and 42,535,856.63

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Solution

The fourth proportional to 77,343,153.55, 106,731,421.98 and 42,535,856.63 is: 58,698,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,343,153.55 : 106,731,421.98 = 42,535,856.63 : x
  2. Step 2: Convert to fraction form
    77,343,153.55/106,731,421.98 = 42,535,856.63/x
  3. Step 3: Cross multiply
    77,343,153.55x = 106,731,421.98 × 42,535,856.63
  4. Step 4: Simplify right side
    77,343,153.55x = 4,539,912,463,364,630
  5. Step 5: Solve for x
    x = 4,539,912,463,364,630/77,343,153.55
  6. Step 6: Final answer
    x = 58,698,310.78

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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.