Home / 2,018,845,542.40-3,028,551,748.80-638,516,118.40

Finding the Fourth Proportional to 2,018,845,542.40, 3,028,551,748.80 and 638,516,118.40

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Solution

The fourth proportional to 2,018,845,542.40, 3,028,551,748.80 and 638,516,118.40 is: 957,863,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018,845,542.40 : 3,028,551,748.80 = 638,516,118.40 : x
  2. Step 2: Convert to fraction form
    2,018,845,542.40/3,028,551,748.80 = 638,516,118.40/x
  3. Step 3: Cross multiply
    2,018,845,542.40x = 3,028,551,748.80 × 638,516,118.40
  4. Step 4: Simplify right side
    2,018,845,542.40x = 1,933,779,107,017,307,904
  5. Step 5: Solve for x
    x = 1,933,779,107,017,307,904/2,018,845,542.40
  6. Step 6: Final answer
    x = 957,863,821.87

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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.