Home / 216,646,306.76-298,971,903.35-123,828,807.51

Finding the Fourth Proportional to 216,646,306.76, 298,971,903.35 and 123,828,807.51

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Solution

The fourth proportional to 216,646,306.76, 298,971,903.35 and 123,828,807.51 is: 170,883,754.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,306.76 : 298,971,903.35 = 123,828,807.51 : x
  2. Step 2: Convert to fraction form
    216,646,306.76/298,971,903.35 = 123,828,807.51/x
  3. Step 3: Cross multiply
    216,646,306.76x = 298,971,903.35 × 123,828,807.51
  4. Step 4: Simplify right side
    216,646,306.76x = 37,021,334,271,135,048
  5. Step 5: Solve for x
    x = 37,021,334,271,135,048/216,646,306.76
  6. Step 6: Final answer
    x = 170,883,754.38

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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.