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Finding the Fourth Proportional to 1,340,798,287.04, 1,851,151,754.40 and 918,119,274.56

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Solution

The fourth proportional to 1,340,798,287.04, 1,851,151,754.40 and 918,119,274.56 is: 1,267,586,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,798,287.04 : 1,851,151,754.40 = 918,119,274.56 : x
  2. Step 2: Convert to fraction form
    1,340,798,287.04/1,851,151,754.40 = 918,119,274.56/x
  3. Step 3: Cross multiply
    1,340,798,287.04x = 1,851,151,754.40 × 918,119,274.56
  4. Step 4: Simplify right side
    1,340,798,287.04x = 1,699,578,105,850,199,296
  5. Step 5: Solve for x
    x = 1,699,578,105,850,199,296/1,340,798,287.04
  6. Step 6: Final answer
    x = 1,267,586,722.24

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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.