Home / 545,082,661.12-752,217,132.72-310,133,315.92

Finding the Fourth Proportional to 545,082,661.12, 752,217,132.72 and 310,133,315.92

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Solution

The fourth proportional to 545,082,661.12, 752,217,132.72 and 310,133,315.92 is: 427,985,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,082,661.12 : 752,217,132.72 = 310,133,315.92 : x
  2. Step 2: Convert to fraction form
    545,082,661.12/752,217,132.72 = 310,133,315.92/x
  3. Step 3: Cross multiply
    545,082,661.12x = 752,217,132.72 × 310,133,315.92
  4. Step 4: Simplify right side
    545,082,661.12x = 233,287,593,662,288,352
  5. Step 5: Solve for x
    x = 233,287,593,662,288,352/545,082,661.12
  6. Step 6: Final answer
    x = 427,985,717.22

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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.