Home / 989,646,116.72-1,365,630,330.56-543,586,427.76

Finding the Fourth Proportional to 989,646,116.72, 1,365,630,330.56 and 543,586,427.76

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Solution

The fourth proportional to 989,646,116.72, 1,365,630,330.56 and 543,586,427.76 is: 750,104,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,646,116.72 : 1,365,630,330.56 = 543,586,427.76 : x
  2. Step 2: Convert to fraction form
    989,646,116.72/1,365,630,330.56 = 543,586,427.76/x
  3. Step 3: Cross multiply
    989,646,116.72x = 1,365,630,330.56 × 543,586,427.76
  4. Step 4: Simplify right side
    989,646,116.72x = 742,338,113,029,818,368
  5. Step 5: Solve for x
    x = 742,338,113,029,818,368/989,646,116.72
  6. Step 6: Final answer
    x = 750,104,608.60

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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.