Home / 152,730,974.64-210,775,685.60-90,009,719.76

Finding the Fourth Proportional to 152,730,974.64, 210,775,685.60 and 90,009,719.76

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Solution

The fourth proportional to 152,730,974.64, 210,775,685.60 and 90,009,719.76 is: 124,217,503.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,730,974.64 : 210,775,685.60 = 90,009,719.76 : x
  2. Step 2: Convert to fraction form
    152,730,974.64/210,775,685.60 = 90,009,719.76/x
  3. Step 3: Cross multiply
    152,730,974.64x = 210,775,685.60 × 90,009,719.76
  4. Step 4: Simplify right side
    152,730,974.64x = 18,971,860,393,077,868
  5. Step 5: Solve for x
    x = 18,971,860,393,077,868/152,730,974.64
  6. Step 6: Final answer
    x = 124,217,503.61

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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.