Home / 74,886,775.20-112,330,162.80-61,281,885.60

Finding the Fourth Proportional to 74,886,775.20, 112,330,162.80 and 61,281,885.60

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Solution

The fourth proportional to 74,886,775.20, 112,330,162.80 and 61,281,885.60 is: 91,922,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,886,775.20 : 112,330,162.80 = 61,281,885.60 : x
  2. Step 2: Convert to fraction form
    74,886,775.20/112,330,162.80 = 61,281,885.60/x
  3. Step 3: Cross multiply
    74,886,775.20x = 112,330,162.80 × 61,281,885.60
  4. Step 4: Simplify right side
    74,886,775.20x = 6,883,804,186,138,976
  5. Step 5: Solve for x
    x = 6,883,804,186,138,976/74,886,775.20
  6. Step 6: Final answer
    x = 91,922,828.40

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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.