Home / 1,220,346,067.30-1,830,519,100.95-402,415,065.70

Finding the Fourth Proportional to 1,220,346,067.30, 1,830,519,100.95 and 402,415,065.70

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Solution

The fourth proportional to 1,220,346,067.30, 1,830,519,100.95 and 402,415,065.70 is: 603,622,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,346,067.30 : 1,830,519,100.95 = 402,415,065.70 : x
  2. Step 2: Convert to fraction form
    1,220,346,067.30/1,830,519,100.95 = 402,415,065.70/x
  3. Step 3: Cross multiply
    1,220,346,067.30x = 1,830,519,100.95 × 402,415,065.70
  4. Step 4: Simplify right side
    1,220,346,067.30x = 736,628,464,273,899,136
  5. Step 5: Solve for x
    x = 736,628,464,273,899,136/1,220,346,067.30
  6. Step 6: Final answer
    x = 603,622,598.55

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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.