Home / 140,537,455,346.88-193,941,688,378.71-80,390,424,429.63

Finding the Fourth Proportional to 140,537,455,346.88, 193,941,688,378.71 and 80,390,424,429.63

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Solution

The fourth proportional to 140,537,455,346.88, 193,941,688,378.71 and 80,390,424,429.63 is: 110,938,785,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,537,455,346.88 : 193,941,688,378.71 = 80,390,424,429.63 : x
  2. Step 2: Convert to fraction form
    140,537,455,346.88/193,941,688,378.71 = 80,390,424,429.63/x
  3. Step 3: Cross multiply
    140,537,455,346.88x = 193,941,688,378.71 × 80,390,424,429.63
  4. Step 4: Simplify right side
    140,537,455,346.88x = 15,591,054,643,363,538,010,112
  5. Step 5: Solve for x
    x = 15,591,054,643,363,538,010,112/140,537,455,346.88
  6. Step 6: Final answer
    x = 110,938,785,712.90

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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.