Home / 711,570,126.51-1,065,965,137.95-490,202,363.73

Finding the Fourth Proportional to 711,570,126.51, 1,065,965,137.95 and 490,202,363.73

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Solution

The fourth proportional to 711,570,126.51, 1,065,965,137.95 and 490,202,363.73 is: 734,345,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,570,126.51 : 1,065,965,137.95 = 490,202,363.73 : x
  2. Step 2: Convert to fraction form
    711,570,126.51/1,065,965,137.95 = 490,202,363.73/x
  3. Step 3: Cross multiply
    711,570,126.51x = 1,065,965,137.95 × 490,202,363.73
  4. Step 4: Simplify right side
    711,570,126.51x = 522,538,630,276,865,600
  5. Step 5: Solve for x
    x = 522,538,630,276,865,600/711,570,126.51
  6. Step 6: Final answer
    x = 734,345,935.57

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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.