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Finding the Fourth Proportional to 1,398,877,550.74, 1,930,477,890.10 and 763,823,222

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Solution

The fourth proportional to 1,398,877,550.74, 1,930,477,890.10 and 763,823,222 is: 1,054,090,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,877,550.74 : 1,930,477,890.10 = 763,823,222 : x
  2. Step 2: Convert to fraction form
    1,398,877,550.74/1,930,477,890.10 = 763,823,222/x
  3. Step 3: Cross multiply
    1,398,877,550.74x = 1,930,477,890.10 × 763,823,222
  4. Step 4: Simplify right side
    1,398,877,550.74x = 1,474,543,842,015,943,936
  5. Step 5: Solve for x
    x = 1,474,543,842,015,943,936/1,398,877,550.74
  6. Step 6: Final answer
    x = 1,054,090,718.12

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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.