Home / 1,236,604,539.30-1,854,906,808.95-418,716,840.30

Finding the Fourth Proportional to 1,236,604,539.30, 1,854,906,808.95 and 418,716,840.30

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Solution

The fourth proportional to 1,236,604,539.30, 1,854,906,808.95 and 418,716,840.30 is: 628,075,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,604,539.30 : 1,854,906,808.95 = 418,716,840.30 : x
  2. Step 2: Convert to fraction form
    1,236,604,539.30/1,854,906,808.95 = 418,716,840.30/x
  3. Step 3: Cross multiply
    1,236,604,539.30x = 1,854,906,808.95 × 418,716,840.30
  4. Step 4: Simplify right side
    1,236,604,539.30x = 776,680,718,094,499,840
  5. Step 5: Solve for x
    x = 776,680,718,094,499,840/1,236,604,539.30
  6. Step 6: Final answer
    x = 628,075,260.45

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Double scale
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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.