Home / 290,020,356.61-435,026,275.43-71,670,692.81

Finding the Fourth Proportional to 290,020,356.61, 435,026,275.43 and 71,670,692.81

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Solution

The fourth proportional to 290,020,356.61, 435,026,275.43 and 71,670,692.81 is: 107,504,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,356.61 : 435,026,275.43 = 71,670,692.81 : x
  2. Step 2: Convert to fraction form
    290,020,356.61/435,026,275.43 = 71,670,692.81/x
  3. Step 3: Cross multiply
    290,020,356.61x = 435,026,275.43 × 71,670,692.81
  4. Step 4: Simplify right side
    290,020,356.61x = 31,178,634,551,351,192
  5. Step 5: Solve for x
    x = 31,178,634,551,351,192/290,020,356.61
  6. Step 6: Final answer
    x = 107,504,986.60

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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.