Home / 1,398,877,549.74-1,930,477,888.72-763,823,221

Finding the Fourth Proportional to 1,398,877,549.74, 1,930,477,888.72 and 763,823,221

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Solution

The fourth proportional to 1,398,877,549.74, 1,930,477,888.72 and 763,823,221 is: 1,054,090,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,877,549.74 : 1,930,477,888.72 = 763,823,221 : x
  2. Step 2: Convert to fraction form
    1,398,877,549.74/1,930,477,888.72 = 763,823,221/x
  3. Step 3: Cross multiply
    1,398,877,549.74x = 1,930,477,888.72 × 763,823,221
  4. Step 4: Simplify right side
    1,398,877,549.74x = 1,474,543,839,031,389,952
  5. Step 5: Solve for x
    x = 1,474,543,839,031,389,952/1,398,877,549.74
  6. Step 6: Final answer
    x = 1,054,090,716.74

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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.