Home / 1,008,003,139.20-1,510,810,315.20-425,736,259.20

Finding the Fourth Proportional to 1,008,003,139.20, 1,510,810,315.20 and 425,736,259.20

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Solution

The fourth proportional to 1,008,003,139.20, 1,510,810,315.20 and 425,736,259.20 is: 638,099,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,003,139.20 : 1,510,810,315.20 = 425,736,259.20 : x
  2. Step 2: Convert to fraction form
    1,008,003,139.20/1,510,810,315.20 = 425,736,259.20/x
  3. Step 3: Cross multiply
    1,008,003,139.20x = 1,510,810,315.20 × 425,736,259.20
  4. Step 4: Simplify right side
    1,008,003,139.20x = 643,206,731,954,020,864
  5. Step 5: Solve for x
    x = 643,206,731,954,020,864/1,008,003,139.20
  6. Step 6: Final answer
    x = 638,099,929.40

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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.