Home / 147,628,840.80-221,443,261.20-140,238,530.40

Finding the Fourth Proportional to 147,628,840.80, 221,443,261.20 and 140,238,530.40

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Solution

The fourth proportional to 147,628,840.80, 221,443,261.20 and 140,238,530.40 is: 210,357,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,628,840.80 : 221,443,261.20 = 140,238,530.40 : x
  2. Step 2: Convert to fraction form
    147,628,840.80/221,443,261.20 = 140,238,530.40/x
  3. Step 3: Cross multiply
    147,628,840.80x = 221,443,261.20 × 140,238,530.40
  4. Step 4: Simplify right side
    147,628,840.80x = 31,054,877,517,671,340
  5. Step 5: Solve for x
    x = 31,054,877,517,671,340/147,628,840.80
  6. Step 6: Final answer
    x = 210,357,795.60

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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.