Home / 1,081,210,298.96-1,621,199,355.96-425,806,406.48

Finding the Fourth Proportional to 1,081,210,298.96, 1,621,199,355.96 and 425,806,406.48

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Solution

The fourth proportional to 1,081,210,298.96, 1,621,199,355.96 and 425,806,406.48 is: 638,466,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,210,298.96 : 1,621,199,355.96 = 425,806,406.48 : x
  2. Step 2: Convert to fraction form
    1,081,210,298.96/1,621,199,355.96 = 425,806,406.48/x
  3. Step 3: Cross multiply
    1,081,210,298.96x = 1,621,199,355.96 × 425,806,406.48
  4. Step 4: Simplify right side
    1,081,210,298.96x = 690,317,071,949,017,984
  5. Step 5: Solve for x
    x = 690,317,071,949,017,984/1,081,210,298.96
  6. Step 6: Final answer
    x = 638,466,977.81

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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.