Home / 625,429,508.94-862,734,133.89-390,071,559.06

Finding the Fourth Proportional to 625,429,508.94, 862,734,133.89 and 390,071,559.06

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Solution

The fourth proportional to 625,429,508.94, 862,734,133.89 and 390,071,559.06 is: 538,075,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,429,508.94 : 862,734,133.89 = 390,071,559.06 : x
  2. Step 2: Convert to fraction form
    625,429,508.94/862,734,133.89 = 390,071,559.06/x
  3. Step 3: Cross multiply
    625,429,508.94x = 862,734,133.89 × 390,071,559.06
  4. Step 4: Simplify right side
    625,429,508.94x = 336,528,048,660,751,104
  5. Step 5: Solve for x
    x = 336,528,048,660,751,104/625,429,508.94
  6. Step 6: Final answer
    x = 538,075,104.95

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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.