Home / 154,974,871.56-213,865,303.56-85,360,252.45

Finding the Fourth Proportional to 154,974,871.56, 213,865,303.56 and 85,360,252.45

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Solution

The fourth proportional to 154,974,871.56, 213,865,303.56 and 85,360,252.45 is: 117,797,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,974,871.56 : 213,865,303.56 = 85,360,252.45 : x
  2. Step 2: Convert to fraction form
    154,974,871.56/213,865,303.56 = 85,360,252.45/x
  3. Step 3: Cross multiply
    154,974,871.56x = 213,865,303.56 × 85,360,252.45
  4. Step 4: Simplify right side
    154,974,871.56x = 18,255,596,302,925,548
  5. Step 5: Solve for x
    x = 18,255,596,302,925,548/154,974,871.56
  6. Step 6: Final answer
    x = 117,797,137.81

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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.