Home / 906,970,319.10-1,251,615,970.80-510,493,078.98

Finding the Fourth Proportional to 906,970,319.10, 1,251,615,970.80 and 510,493,078.98

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Solution

The fourth proportional to 906,970,319.10, 1,251,615,970.80 and 510,493,078.98 is: 704,478,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,970,319.10 : 1,251,615,970.80 = 510,493,078.98 : x
  2. Step 2: Convert to fraction form
    906,970,319.10/1,251,615,970.80 = 510,493,078.98/x
  3. Step 3: Cross multiply
    906,970,319.10x = 1,251,615,970.80 × 510,493,078.98
  4. Step 4: Simplify right side
    906,970,319.10x = 638,941,290,634,233,728
  5. Step 5: Solve for x
    x = 638,941,290,634,233,728/906,970,319.10
  6. Step 6: Final answer
    x = 704,478,721.28

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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.