Home / 290,020,356.64-435,026,275.40-71,670,692.82

Finding the Fourth Proportional to 290,020,356.64, 435,026,275.40 and 71,670,692.82

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Solution

The fourth proportional to 290,020,356.64, 435,026,275.40 and 71,670,692.82 is: 107,504,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,356.64 : 435,026,275.40 = 71,670,692.82 : x
  2. Step 2: Convert to fraction form
    290,020,356.64/435,026,275.40 = 71,670,692.82/x
  3. Step 3: Cross multiply
    290,020,356.64x = 435,026,275.40 × 71,670,692.82
  4. Step 4: Simplify right side
    290,020,356.64x = 31,178,634,552,822,116
  5. Step 5: Solve for x
    x = 31,178,634,552,822,116/290,020,356.64
  6. Step 6: Final answer
    x = 107,504,986.59

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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.