Home / 686,594,259.20-1,029,891,388.80-255,683,590.40

Finding the Fourth Proportional to 686,594,259.20, 1,029,891,388.80 and 255,683,590.40

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Solution

The fourth proportional to 686,594,259.20, 1,029,891,388.80 and 255,683,590.40 is: 383,525,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,594,259.20 : 1,029,891,388.80 = 255,683,590.40 : x
  2. Step 2: Convert to fraction form
    686,594,259.20/1,029,891,388.80 = 255,683,590.40/x
  3. Step 3: Cross multiply
    686,594,259.20x = 1,029,891,388.80 × 255,683,590.40
  4. Step 4: Simplify right side
    686,594,259.20x = 263,326,328,010,426,336
  5. Step 5: Solve for x
    x = 263,326,328,010,426,336/686,594,259.20
  6. Step 6: Final answer
    x = 383,525,385.60

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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.