Home / 115,739,290.72-159,852,779.53-76,223,465.73

Finding the Fourth Proportional to 115,739,290.72, 159,852,779.53 and 76,223,465.73

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Solution

The fourth proportional to 115,739,290.72, 159,852,779.53 and 76,223,465.73 is: 105,275,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,739,290.72 : 159,852,779.53 = 76,223,465.73 : x
  2. Step 2: Convert to fraction form
    115,739,290.72/159,852,779.53 = 76,223,465.73/x
  3. Step 3: Cross multiply
    115,739,290.72x = 159,852,779.53 × 76,223,465.73
  4. Step 4: Simplify right side
    115,739,290.72x = 12,184,532,862,159,642
  5. Step 5: Solve for x
    x = 12,184,532,862,159,642/115,739,290.72
  6. Step 6: Final answer
    x = 105,275,682.84

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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.