Home / 859,820,720.20-1,287,817,892.70-706,765,712.20

Finding the Fourth Proportional to 859,820,720.20, 1,287,817,892.70 and 706,765,712.20

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Solution

The fourth proportional to 859,820,720.20, 1,287,817,892.70 and 706,765,712.20 is: 1,058,575,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,820,720.20 : 1,287,817,892.70 = 706,765,712.20 : x
  2. Step 2: Convert to fraction form
    859,820,720.20/1,287,817,892.70 = 706,765,712.20/x
  3. Step 3: Cross multiply
    859,820,720.20x = 1,287,817,892.70 × 706,765,712.20
  4. Step 4: Simplify right side
    859,820,720.20x = 910,185,530,118,018,816
  5. Step 5: Solve for x
    x = 910,185,530,118,018,816/859,820,720.20
  6. Step 6: Final answer
    x = 1,058,575,943.49

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1.5x scale

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.