Home / 989,646,120.70-1,365,630,336.08-543,586,431.76

Finding the Fourth Proportional to 989,646,120.70, 1,365,630,336.08 and 543,586,431.76

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Solution

The fourth proportional to 989,646,120.70, 1,365,630,336.08 and 543,586,431.76 is: 750,104,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,646,120.70 : 1,365,630,336.08 = 543,586,431.76 : x
  2. Step 2: Convert to fraction form
    989,646,120.70/1,365,630,336.08 = 543,586,431.76/x
  3. Step 3: Cross multiply
    989,646,120.70x = 1,365,630,336.08 × 543,586,431.76
  4. Step 4: Simplify right side
    989,646,120.70x = 742,338,121,492,936,704
  5. Step 5: Solve for x
    x = 742,338,121,492,936,704/989,646,120.70
  6. Step 6: Final answer
    x = 750,104,614.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.