Home / 216,646,283.13-298,971,870.72-123,828,783.87

Finding the Fourth Proportional to 216,646,283.13, 298,971,870.72 and 123,828,783.87

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Solution

The fourth proportional to 216,646,283.13, 298,971,870.72 and 123,828,783.87 is: 170,883,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,283.13 : 298,971,870.72 = 123,828,783.87 : x
  2. Step 2: Convert to fraction form
    216,646,283.13/298,971,870.72 = 123,828,783.87/x
  3. Step 3: Cross multiply
    216,646,283.13x = 298,971,870.72 × 123,828,783.87
  4. Step 4: Simplify right side
    216,646,283.13x = 37,021,323,163,332,512
  5. Step 5: Solve for x
    x = 37,021,323,163,332,512/216,646,283.13
  6. Step 6: Final answer
    x = 170,883,721.75

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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.