Home / 989,646,142.16-1,365,630,365.76-543,586,453.22

Finding the Fourth Proportional to 989,646,142.16, 1,365,630,365.76 and 543,586,453.22

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Solution

The fourth proportional to 989,646,142.16, 1,365,630,365.76 and 543,586,453.22 is: 750,104,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,646,142.16 : 1,365,630,365.76 = 543,586,453.22 : x
  2. Step 2: Convert to fraction form
    989,646,142.16/1,365,630,365.76 = 543,586,453.22/x
  3. Step 3: Cross multiply
    989,646,142.16x = 1,365,630,365.76 × 543,586,453.22
  4. Step 4: Simplify right side
    989,646,142.16x = 742,338,166,933,009,792
  5. Step 5: Solve for x
    x = 742,338,166,933,009,792/989,646,142.16
  6. Step 6: Final answer
    x = 750,104,643.78

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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.