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Finding the Fourth Proportional to 1,279,233,898.02, 1,918,850,847.57 and 461,346,199.02

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Solution

The fourth proportional to 1,279,233,898.02, 1,918,850,847.57 and 461,346,199.02 is: 692,019,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,233,898.02 : 1,918,850,847.57 = 461,346,199.02 : x
  2. Step 2: Convert to fraction form
    1,279,233,898.02/1,918,850,847.57 = 461,346,199.02/x
  3. Step 3: Cross multiply
    1,279,233,898.02x = 1,918,850,847.57 × 461,346,199.02
  4. Step 4: Simplify right side
    1,279,233,898.02x = 885,254,545,012,724,864
  5. Step 5: Solve for x
    x = 885,254,545,012,724,864/1,279,233,898.02
  6. Step 6: Final answer
    x = 692,019,298.72

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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.