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Finding the Fourth Proportional to 1,379,780,965.04, 1,904,088,045.38 and 753,249,392.96

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Solution

The fourth proportional to 1,379,780,965.04, 1,904,088,045.38 and 753,249,392.96 is: 1,039,478,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,780,965.04 : 1,904,088,045.38 = 753,249,392.96 : x
  2. Step 2: Convert to fraction form
    1,379,780,965.04/1,904,088,045.38 = 753,249,392.96/x
  3. Step 3: Cross multiply
    1,379,780,965.04x = 1,904,088,045.38 × 753,249,392.96
  4. Step 4: Simplify right side
    1,379,780,965.04x = 1,434,253,164,324,878,080
  5. Step 5: Solve for x
    x = 1,434,253,164,324,878,080/1,379,780,965.04
  6. Step 6: Final answer
    x = 1,039,478,874.30

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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.