Home / 189,985,862.76-285,163,075.50-91,686,746.64

Finding the Fourth Proportional to 189,985,862.76, 285,163,075.50 and 91,686,746.64

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Solution

The fourth proportional to 189,985,862.76, 285,163,075.50 and 91,686,746.64 is: 137,619,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,985,862.76 : 285,163,075.50 = 91,686,746.64 : x
  2. Step 2: Convert to fraction form
    189,985,862.76/285,163,075.50 = 91,686,746.64/x
  3. Step 3: Cross multiply
    189,985,862.76x = 285,163,075.50 × 91,686,746.64
  4. Step 4: Simplify right side
    189,985,862.76x = 26,145,674,654,451,692
  5. Step 5: Solve for x
    x = 26,145,674,654,451,692/189,985,862.76
  6. Step 6: Final answer
    x = 137,619,053.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.