Home / 140,537,455,348.93-193,941,688,381.54-80,390,424,431.67

Finding the Fourth Proportional to 140,537,455,348.93, 193,941,688,381.54 and 80,390,424,431.67

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Solution

The fourth proportional to 140,537,455,348.93, 193,941,688,381.54 and 80,390,424,431.67 is: 110,938,785,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,537,455,348.93 : 193,941,688,381.54 = 80,390,424,431.67 : x
  2. Step 2: Convert to fraction form
    140,537,455,348.93/193,941,688,381.54 = 80,390,424,431.67/x
  3. Step 3: Cross multiply
    140,537,455,348.93x = 193,941,688,381.54 × 80,390,424,431.67
  4. Step 4: Simplify right side
    140,537,455,348.93x = 15,591,054,643,986,683,658,240
  5. Step 5: Solve for x
    x = 15,591,054,643,986,683,658,240/140,537,455,348.93
  6. Step 6: Final answer
    x = 110,938,785,715.71

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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.