Home / 839,990,878.42-1,159,014,353.21-482,689,641.64

Finding the Fourth Proportional to 839,990,878.42, 1,159,014,353.21 and 482,689,641.64

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Solution

The fourth proportional to 839,990,878.42, 1,159,014,353.21 and 482,689,641.64 is: 666,012,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,990,878.42 : 1,159,014,353.21 = 482,689,641.64 : x
  2. Step 2: Convert to fraction form
    839,990,878.42/1,159,014,353.21 = 482,689,641.64/x
  3. Step 3: Cross multiply
    839,990,878.42x = 1,159,014,353.21 × 482,689,641.64
  4. Step 4: Simplify right side
    839,990,878.42x = 559,444,222,806,551,296
  5. Step 5: Solve for x
    x = 559,444,222,806,551,296/839,990,878.42
  6. Step 6: Final answer
    x = 666,012,259.39

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Double scale
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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.