Home / 1,019,160,987.60-1,528,741,481.40-338,356,635.60

Finding the Fourth Proportional to 1,019,160,987.60, 1,528,741,481.40 and 338,356,635.60

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Solution

The fourth proportional to 1,019,160,987.60, 1,528,741,481.40 and 338,356,635.60 is: 507,534,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,160,987.60 : 1,528,741,481.40 = 338,356,635.60 : x
  2. Step 2: Convert to fraction form
    1,019,160,987.60/1,528,741,481.40 = 338,356,635.60/x
  3. Step 3: Cross multiply
    1,019,160,987.60x = 1,528,741,481.40 × 338,356,635.60
  4. Step 4: Simplify right side
    1,019,160,987.60x = 517,259,824,348,664,064
  5. Step 5: Solve for x
    x = 517,259,824,348,664,064/1,019,160,987.60
  6. Step 6: Final answer
    x = 507,534,953.40

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Double scale
Find fourth proportional to 1,019,160,988.60, 1,528,741,482.90 and 338,356,636.60
Similar ratio
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1.5x scale

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.