Home / 154,681,030.72-213,455,559.84-85,066,410.24

Finding the Fourth Proportional to 154,681,030.72, 213,455,559.84 and 85,066,410.24

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Solution

The fourth proportional to 154,681,030.72, 213,455,559.84 and 85,066,410.24 is: 117,389,301.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,681,030.72 : 213,455,559.84 = 85,066,410.24 : x
  2. Step 2: Convert to fraction form
    154,681,030.72/213,455,559.84 = 85,066,410.24/x
  3. Step 3: Cross multiply
    154,681,030.72x = 213,455,559.84 × 85,066,410.24
  4. Step 4: Simplify right side
    154,681,030.72x = 18,157,898,221,358,308
  5. Step 5: Solve for x
    x = 18,157,898,221,358,308/154,681,030.72
  6. Step 6: Final answer
    x = 117,389,301.95

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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.