Home / 77,440,285.20-106,865,911.80-42,631,643.28

Finding the Fourth Proportional to 77,440,285.20, 106,865,911.80 and 42,631,643.28

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Solution

The fourth proportional to 77,440,285.20, 106,865,911.80 and 42,631,643.28 is: 58,830,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,440,285.20 : 106,865,911.80 = 42,631,643.28 : x
  2. Step 2: Convert to fraction form
    77,440,285.20/106,865,911.80 = 42,631,643.28/x
  3. Step 3: Cross multiply
    77,440,285.20x = 106,865,911.80 × 42,631,643.28
  4. Step 4: Simplify right side
    77,440,285.20x = 4,555,869,430,649,543
  5. Step 5: Solve for x
    x = 4,555,869,430,649,543/77,440,285.20
  6. Step 6: Final answer
    x = 58,830,741.89

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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.