Home / 239,249,479.52-330,225,707.40-155,825,489.72

Finding the Fourth Proportional to 239,249,479.52, 330,225,707.40 and 155,825,489.72

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Solution

The fourth proportional to 239,249,479.52, 330,225,707.40 and 155,825,489.72 is: 215,079,182.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,249,479.52 : 330,225,707.40 = 155,825,489.72 : x
  2. Step 2: Convert to fraction form
    239,249,479.52/330,225,707.40 = 155,825,489.72/x
  3. Step 3: Cross multiply
    239,249,479.52x = 330,225,707.40 × 155,825,489.72
  4. Step 4: Simplify right side
    239,249,479.52x = 51,457,582,573,738,424
  5. Step 5: Solve for x
    x = 51,457,582,573,738,424/239,249,479.52
  6. Step 6: Final answer
    x = 215,079,182.94

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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.