Home / 1,012,623,603.90-1,518,994,192.41-390,842,292.21

Finding the Fourth Proportional to 1,012,623,603.90, 1,518,994,192.41 and 390,842,292.21

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Solution

The fourth proportional to 1,012,623,603.90, 1,518,994,192.41 and 390,842,292.21 is: 586,286,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,623,603.90 : 1,518,994,192.41 = 390,842,292.21 : x
  2. Step 2: Convert to fraction form
    1,012,623,603.90/1,518,994,192.41 = 390,842,292.21/x
  3. Step 3: Cross multiply
    1,012,623,603.90x = 1,518,994,192.41 × 390,842,292.21
  4. Step 4: Simplify right side
    1,012,623,603.90x = 593,687,172,015,202,176
  5. Step 5: Solve for x
    x = 593,687,172,015,202,176/1,012,623,603.90
  6. Step 6: Final answer
    x = 586,286,128.16

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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.