Home / 1,243,328,723.60-1,864,489,200.60-425,019,808.40

Finding the Fourth Proportional to 1,243,328,723.60, 1,864,489,200.60 and 425,019,808.40

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Solution

The fourth proportional to 1,243,328,723.60, 1,864,489,200.60 and 425,019,808.40 is: 637,357,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,328,723.60 : 1,864,489,200.60 = 425,019,808.40 : x
  2. Step 2: Convert to fraction form
    1,243,328,723.60/1,864,489,200.60 = 425,019,808.40/x
  3. Step 3: Cross multiply
    1,243,328,723.60x = 1,864,489,200.60 × 425,019,808.40
  4. Step 4: Simplify right side
    1,243,328,723.60x = 792,444,842,802,881,024
  5. Step 5: Solve for x
    x = 792,444,842,802,881,024/1,243,328,723.60
  6. Step 6: Final answer
    x = 637,357,464.49

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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.