Home / 1,019,160,989.60-1,528,741,484.40-338,356,637.60

Finding the Fourth Proportional to 1,019,160,989.60, 1,528,741,484.40 and 338,356,637.60

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Solution

The fourth proportional to 1,019,160,989.60, 1,528,741,484.40 and 338,356,637.60 is: 507,534,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,160,989.60 : 1,528,741,484.40 = 338,356,637.60 : x
  2. Step 2: Convert to fraction form
    1,019,160,989.60/1,528,741,484.40 = 338,356,637.60/x
  3. Step 3: Cross multiply
    1,019,160,989.60x = 1,528,741,484.40 × 338,356,637.60
  4. Step 4: Simplify right side
    1,019,160,989.60x = 517,259,828,421,216,896
  5. Step 5: Solve for x
    x = 517,259,828,421,216,896/1,019,160,989.60
  6. Step 6: Final answer
    x = 507,534,956.40

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Double scale
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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.