Home / 678,367,320.40-1,017,550,980.60-242,160,547.60

Finding the Fourth Proportional to 678,367,320.40, 1,017,550,980.60 and 242,160,547.60

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Solution

The fourth proportional to 678,367,320.40, 1,017,550,980.60 and 242,160,547.60 is: 363,240,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,367,320.40 : 1,017,550,980.60 = 242,160,547.60 : x
  2. Step 2: Convert to fraction form
    678,367,320.40/1,017,550,980.60 = 242,160,547.60/x
  3. Step 3: Cross multiply
    678,367,320.40x = 1,017,550,980.60 × 242,160,547.60
  4. Step 4: Simplify right side
    678,367,320.40x = 246,410,702,673,012,992
  5. Step 5: Solve for x
    x = 246,410,702,673,012,992/678,367,320.40
  6. Step 6: Final answer
    x = 363,240,821.40

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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.