Home / 782,328,004.80-1,173,492,007.20-506,828,990.40

Finding the Fourth Proportional to 782,328,004.80, 1,173,492,007.20 and 506,828,990.40

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Solution

The fourth proportional to 782,328,004.80, 1,173,492,007.20 and 506,828,990.40 is: 760,243,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,328,004.80 : 1,173,492,007.20 = 506,828,990.40 : x
  2. Step 2: Convert to fraction form
    782,328,004.80/1,173,492,007.20 = 506,828,990.40/x
  3. Step 3: Cross multiply
    782,328,004.80x = 1,173,492,007.20 × 506,828,990.40
  4. Step 4: Simplify right side
    782,328,004.80x = 594,759,769,251,645,568
  5. Step 5: Solve for x
    x = 594,759,769,251,645,568/782,328,004.80
  6. Step 6: Final answer
    x = 760,243,485.60

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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.