Home / 388,973,807.44-536,785,471.52-210,357,695.76

Finding the Fourth Proportional to 388,973,807.44, 536,785,471.52 and 210,357,695.76

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Solution

The fourth proportional to 388,973,807.44, 536,785,471.52 and 210,357,695.76 is: 290,294,494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,973,807.44 : 536,785,471.52 = 210,357,695.76 : x
  2. Step 2: Convert to fraction form
    388,973,807.44/536,785,471.52 = 210,357,695.76/x
  3. Step 3: Cross multiply
    388,973,807.44x = 536,785,471.52 × 210,357,695.76
  4. Step 4: Simplify right side
    388,973,807.44x = 112,916,954,902,656,576
  5. Step 5: Solve for x
    x = 112,916,954,902,656,576/388,973,807.44
  6. Step 6: Final answer
    x = 290,294,494.76

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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.