Home / 290,259,849.60-400,559,140.80-158,100,436.80

Finding the Fourth Proportional to 290,259,849.60, 400,559,140.80 and 158,100,436.80

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Solution

The fourth proportional to 290,259,849.60, 400,559,140.80 and 158,100,436.80 is: 218,178,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,259,849.60 : 400,559,140.80 = 158,100,436.80 : x
  2. Step 2: Convert to fraction form
    290,259,849.60/400,559,140.80 = 158,100,436.80/x
  3. Step 3: Cross multiply
    290,259,849.60x = 400,559,140.80 × 158,100,436.80
  4. Step 4: Simplify right side
    290,259,849.60x = 63,328,575,124,712,712
  5. Step 5: Solve for x
    x = 63,328,575,124,712,712/290,259,849.60
  6. Step 6: Final answer
    x = 218,178,901.46

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1.5x scale

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.