Home / 77,509,912.40-106,968,510.60-42,702,595.64

Finding the Fourth Proportional to 77,509,912.40, 106,968,510.60 and 42,702,595.64

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Solution

The fourth proportional to 77,509,912.40, 106,968,510.60 and 42,702,595.64 is: 58,932,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,509,912.40 : 106,968,510.60 = 42,702,595.64 : x
  2. Step 2: Convert to fraction form
    77,509,912.40/106,968,510.60 = 42,702,595.64/x
  3. Step 3: Cross multiply
    77,509,912.40x = 106,968,510.60 × 42,702,595.64
  4. Step 4: Simplify right side
    77,509,912.40x = 4,567,833,054,364,854
  5. Step 5: Solve for x
    x = 4,567,833,054,364,854/77,509,912.40
  6. Step 6: Final answer
    x = 58,932,243.80

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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.