Home / 65,808,670.70-90,989,323.72-57,636,483.50

Finding the Fourth Proportional to 65,808,670.70, 90,989,323.72 and 57,636,483.50

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Solution

The fourth proportional to 65,808,670.70, 90,989,323.72 and 57,636,483.50 is: 79,690,177.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,808,670.70 : 90,989,323.72 = 57,636,483.50 : x
  2. Step 2: Convert to fraction form
    65,808,670.70/90,989,323.72 = 57,636,483.50/x
  3. Step 3: Cross multiply
    65,808,670.70x = 90,989,323.72 × 57,636,483.50
  4. Step 4: Simplify right side
    65,808,670.70x = 5,244,304,655,263,939
  5. Step 5: Solve for x
    x = 5,244,304,655,263,939/65,808,670.70
  6. Step 6: Final answer
    x = 79,690,177.59

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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.