Home / 485,052,890.40-727,685,623.80-239,527,148.40

Finding the Fourth Proportional to 485,052,890.40, 727,685,623.80 and 239,527,148.40

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Solution

The fourth proportional to 485,052,890.40, 727,685,623.80 and 239,527,148.40 is: 359,343,209.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,052,890.40 : 727,685,623.80 = 239,527,148.40 : x
  2. Step 2: Convert to fraction form
    485,052,890.40/727,685,623.80 = 239,527,148.40/x
  3. Step 3: Cross multiply
    485,052,890.40x = 727,685,623.80 × 239,527,148.40
  4. Step 4: Simplify right side
    485,052,890.40x = 174,300,462,400,489,152
  5. Step 5: Solve for x
    x = 174,300,462,400,489,152/485,052,890.40
  6. Step 6: Final answer
    x = 359,343,209.47

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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.