Home / 56,977,152.54-78,628,360.56-30,872,376.96

Finding the Fourth Proportional to 56,977,152.54, 78,628,360.56 and 30,872,376.96

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Solution

The fourth proportional to 56,977,152.54, 78,628,360.56 and 30,872,376.96 is: 42,603,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,152.54 : 78,628,360.56 = 30,872,376.96 : x
  2. Step 2: Convert to fraction form
    56,977,152.54/78,628,360.56 = 30,872,376.96/x
  3. Step 3: Cross multiply
    56,977,152.54x = 78,628,360.56 × 30,872,376.96
  4. Step 4: Simplify right side
    56,977,152.54x = 2,427,444,386,955,117
  5. Step 5: Solve for x
    x = 2,427,444,386,955,117/56,977,152.54
  6. Step 6: Final answer
    x = 42,603,820.63

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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.