Home / 140,537,455,357.11-193,941,688,392.81-80,390,424,439.86

Finding the Fourth Proportional to 140,537,455,357.11, 193,941,688,392.81 and 80,390,424,439.86

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Solution

The fourth proportional to 140,537,455,357.11, 193,941,688,392.81 and 80,390,424,439.86 is: 110,938,785,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,537,455,357.11 : 193,941,688,392.81 = 80,390,424,439.86 : x
  2. Step 2: Convert to fraction form
    140,537,455,357.11/193,941,688,392.81 = 80,390,424,439.86/x
  3. Step 3: Cross multiply
    140,537,455,357.11x = 193,941,688,392.81 × 80,390,424,439.86
  4. Step 4: Simplify right side
    140,537,455,357.11x = 15,591,054,646,481,065,607,168
  5. Step 5: Solve for x
    x = 15,591,054,646,481,065,607,168/140,537,455,357.11
  6. Step 6: Final answer
    x = 110,938,785,727.01

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1.5x scale

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.