Home / 152,776,031.19-210,836,015.61-85,806,790.94

Finding the Fourth Proportional to 152,776,031.19, 210,836,015.61 and 85,806,790.94

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Solution

The fourth proportional to 152,776,031.19, 210,836,015.61 and 85,806,790.94 is: 118,416,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,776,031.19 : 210,836,015.61 = 85,806,790.94 : x
  2. Step 2: Convert to fraction form
    152,776,031.19/210,836,015.61 = 85,806,790.94/x
  3. Step 3: Cross multiply
    152,776,031.19x = 210,836,015.61 × 85,806,790.94
  4. Step 4: Simplify right side
    152,776,031.19x = 18,091,161,913,640,812
  5. Step 5: Solve for x
    x = 18,091,161,913,640,812/152,776,031.19
  6. Step 6: Final answer
    x = 118,416,231.74

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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.