Home / 790,356,981.60-1,090,691,561.52-437,955,796.08

Finding the Fourth Proportional to 790,356,981.60, 1,090,691,561.52 and 437,955,796.08

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Solution

The fourth proportional to 790,356,981.60, 1,090,691,561.52 and 437,955,796.08 is: 604,378,403.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,356,981.60 : 1,090,691,561.52 = 437,955,796.08 : x
  2. Step 2: Convert to fraction form
    790,356,981.60/1,090,691,561.52 = 437,955,796.08/x
  3. Step 3: Cross multiply
    790,356,981.60x = 1,090,691,561.52 × 437,955,796.08
  4. Step 4: Simplify right side
    790,356,981.60x = 477,674,691,103,229,888
  5. Step 5: Solve for x
    x = 477,674,691,103,229,888/790,356,981.60
  6. Step 6: Final answer
    x = 604,378,403.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.