Home / 1,118,627,980.99-1,678,009,230.08-342,280,367.76

Finding the Fourth Proportional to 1,118,627,980.99, 1,678,009,230.08 and 342,280,367.76

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Solution

The fourth proportional to 1,118,627,980.99, 1,678,009,230.08 and 342,280,367.76 is: 513,441,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,627,980.99 : 1,678,009,230.08 = 342,280,367.76 : x
  2. Step 2: Convert to fraction form
    1,118,627,980.99/1,678,009,230.08 = 342,280,367.76/x
  3. Step 3: Cross multiply
    1,118,627,980.99x = 1,678,009,230.08 × 342,280,367.76
  4. Step 4: Simplify right side
    1,118,627,980.99x = 574,349,616,376,456,832
  5. Step 5: Solve for x
    x = 574,349,616,376,456,832/1,118,627,980.99
  6. Step 6: Final answer
    x = 513,441,131.58

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Double scale
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1.5x scale

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.