Home / 1,282,404,498.20-1,924,850,646.48-618,885,464.24

Finding the Fourth Proportional to 1,282,404,498.20, 1,924,850,646.48 and 618,885,464.24

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Solution

The fourth proportional to 1,282,404,498.20, 1,924,850,646.48 and 618,885,464.24 is: 928,928,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,404,498.20 : 1,924,850,646.48 = 618,885,464.24 : x
  2. Step 2: Convert to fraction form
    1,282,404,498.20/1,924,850,646.48 = 618,885,464.24/x
  3. Step 3: Cross multiply
    1,282,404,498.20x = 1,924,850,646.48 × 618,885,464.24
  4. Step 4: Simplify right side
    1,282,404,498.20x = 1,191,262,085,939,438,848
  5. Step 5: Solve for x
    x = 1,191,262,085,939,438,848/1,282,404,498.20
  6. Step 6: Final answer
    x = 928,928,499.25

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Double scale
Find fourth proportional to 1,282,404,499.20, 1,924,850,647.98 and 618,885,465.24
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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.