Home / 153,712,521.55-212,128,338.33-84,096,309.34

Finding the Fourth Proportional to 153,712,521.55, 212,128,338.33 and 84,096,309.34

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Solution

The fourth proportional to 153,712,521.55, 212,128,338.33 and 84,096,309.34 is: 116,055,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,712,521.55 : 212,128,338.33 = 84,096,309.34 : x
  2. Step 2: Convert to fraction form
    153,712,521.55/212,128,338.33 = 84,096,309.34/x
  3. Step 3: Cross multiply
    153,712,521.55x = 212,128,338.33 × 84,096,309.34
  4. Step 4: Simplify right side
    153,712,521.55x = 17,839,210,359,979,860
  5. Step 5: Solve for x
    x = 17,839,210,359,979,860/153,712,521.55
  6. Step 6: Final answer
    x = 116,055,674.45

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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.