Home / 1,278,061,577.04-1,763,590,615.61-742,108,476.90

Finding the Fourth Proportional to 1,278,061,577.04, 1,763,590,615.61 and 742,108,476.90

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Solution

The fourth proportional to 1,278,061,577.04, 1,763,590,615.61 and 742,108,476.90 is: 1,024,031,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,061,577.04 : 1,763,590,615.61 = 742,108,476.90 : x
  2. Step 2: Convert to fraction form
    1,278,061,577.04/1,763,590,615.61 = 742,108,476.90/x
  3. Step 3: Cross multiply
    1,278,061,577.04x = 1,763,590,615.61 × 742,108,476.90
  4. Step 4: Simplify right side
    1,278,061,577.04x = 1,308,775,545,621,760,000
  5. Step 5: Solve for x
    x = 1,308,775,545,621,760,000/1,278,061,577.04
  6. Step 6: Final answer
    x = 1,024,031,681.36

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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.