Home / 85,614,248.40-128,247,190.20-53,166,555.60

Finding the Fourth Proportional to 85,614,248.40, 128,247,190.20 and 53,166,555.60

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Solution

The fourth proportional to 85,614,248.40, 128,247,190.20 and 53,166,555.60 is: 79,641,665.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,614,248.40 : 128,247,190.20 = 53,166,555.60 : x
  2. Step 2: Convert to fraction form
    85,614,248.40/128,247,190.20 = 53,166,555.60/x
  3. Step 3: Cross multiply
    85,614,248.40x = 128,247,190.20 × 53,166,555.60
  4. Step 4: Simplify right side
    85,614,248.40x = 6,818,461,368,312,075
  5. Step 5: Solve for x
    x = 6,818,461,368,312,075/85,614,248.40
  6. Step 6: Final answer
    x = 79,641,665.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.