Home / 2,019,121,404.40-3,028,965,541.80-638,791,980.40

Finding the Fourth Proportional to 2,019,121,404.40, 3,028,965,541.80 and 638,791,980.40

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Solution

The fourth proportional to 2,019,121,404.40, 3,028,965,541.80 and 638,791,980.40 is: 958,277,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,121,404.40 : 3,028,965,541.80 = 638,791,980.40 : x
  2. Step 2: Convert to fraction form
    2,019,121,404.40/3,028,965,541.80 = 638,791,980.40/x
  3. Step 3: Cross multiply
    2,019,121,404.40x = 3,028,965,541.80 × 638,791,980.40
  4. Step 4: Simplify right side
    2,019,121,404.40x = 1,934,878,897,009,780,992
  5. Step 5: Solve for x
    x = 1,934,878,897,009,780,992/2,019,121,404.40
  6. Step 6: Final answer
    x = 958,277,641.35

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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.