Home / 1,312,091,501-1,810,724,062.80-725,418,428.36

Finding the Fourth Proportional to 1,312,091,501, 1,810,724,062.80 and 725,418,428.36

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Solution

The fourth proportional to 1,312,091,501, 1,810,724,062.80 and 725,418,428.36 is: 1,001,098,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,091,501 : 1,810,724,062.80 = 725,418,428.36 : x
  2. Step 2: Convert to fraction form
    1,312,091,501/1,810,724,062.80 = 725,418,428.36/x
  3. Step 3: Cross multiply
    1,312,091,501x = 1,810,724,062.80 × 725,418,428.36
  4. Step 4: Simplify right side
    1,312,091,501x = 1,313,532,603,830,009,856
  5. Step 5: Solve for x
    x = 1,313,532,603,830,009,856/1,312,091,501
  6. Step 6: Final answer
    x = 1,001,098,324.95

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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.