Home / 848,007,490.38-1,272,011,700.30-387,622,809.28

Finding the Fourth Proportional to 848,007,490.38, 1,272,011,700.30 and 387,622,809.28

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Solution

The fourth proportional to 848,007,490.38, 1,272,011,700.30 and 387,622,809.28 is: 581,434,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,007,490.38 : 1,272,011,700.30 = 387,622,809.28 : x
  2. Step 2: Convert to fraction form
    848,007,490.38/1,272,011,700.30 = 387,622,809.28/x
  3. Step 3: Cross multiply
    848,007,490.38x = 1,272,011,700.30 × 387,622,809.28
  4. Step 4: Simplify right side
    848,007,490.38x = 493,060,748,707,315,392
  5. Step 5: Solve for x
    x = 493,060,748,707,315,392/848,007,490.38
  6. Step 6: Final answer
    x = 581,434,426.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.