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Finding the Fourth Proportional to 885,736,279.70, 1,328,604,419.55 and 880,634,446.10

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Solution

The fourth proportional to 885,736,279.70, 1,328,604,419.55 and 880,634,446.10 is: 1,320,951,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,279.70 : 1,328,604,419.55 = 880,634,446.10 : x
  2. Step 2: Convert to fraction form
    885,736,279.70/1,328,604,419.55 = 880,634,446.10/x
  3. Step 3: Cross multiply
    885,736,279.70x = 1,328,604,419.55 × 880,634,446.10
  4. Step 4: Simplify right side
    885,736,279.70x = 1,170,014,817,096,426,240
  5. Step 5: Solve for x
    x = 1,170,014,817,096,426,240/885,736,279.70
  6. Step 6: Final answer
    x = 1,320,951,669.15

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Double scale
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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.