Home / 1,278,061,574.54-1,763,590,612.16-742,108,474.40

Finding the Fourth Proportional to 1,278,061,574.54, 1,763,590,612.16 and 742,108,474.40

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Solution

The fourth proportional to 1,278,061,574.54, 1,763,590,612.16 and 742,108,474.40 is: 1,024,031,677.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,061,574.54 : 1,763,590,612.16 = 742,108,474.40 : x
  2. Step 2: Convert to fraction form
    1,278,061,574.54/1,763,590,612.16 = 742,108,474.40/x
  3. Step 3: Cross multiply
    1,278,061,574.54x = 1,763,590,612.16 × 742,108,474.40
  4. Step 4: Simplify right side
    1,278,061,574.54x = 1,308,775,538,652,509,184
  5. Step 5: Solve for x
    x = 1,308,775,538,652,509,184/1,278,061,574.54
  6. Step 6: Final answer
    x = 1,024,031,677.91

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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.