Home / 1,124,299,642,789.70-1,551,533,507,049.90-643,123,395,451.68

Finding the Fourth Proportional to 1,124,299,642,789.70, 1,551,533,507,049.90 and 643,123,395,451.68

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Solution

The fourth proportional to 1,124,299,642,789.70, 1,551,533,507,049.90 and 643,123,395,451.68 is: 887,510,285,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,299,642,789.70 : 1,551,533,507,049.90 = 643,123,395,451.68 : x
  2. Step 2: Convert to fraction form
    1,124,299,642,789.70/1,551,533,507,049.90 = 643,123,395,451.68/x
  3. Step 3: Cross multiply
    1,124,299,642,789.70x = 1,551,533,507,049.90 × 643,123,395,451.68
  4. Step 4: Simplify right side
    1,124,299,642,789.70x = 997,827,497,210,984,857,075,712
  5. Step 5: Solve for x
    x = 997,827,497,210,984,857,075,712/1,124,299,642,789.70
  6. Step 6: Final answer
    x = 887,510,285,723.38

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Double scale
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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.