Home / 830,514,009.60-1,245,771,014.40-817,599,993.30

Finding the Fourth Proportional to 830,514,009.60, 1,245,771,014.40 and 817,599,993.30

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Solution

The fourth proportional to 830,514,009.60, 1,245,771,014.40 and 817,599,993.30 is: 1,226,399,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,514,009.60 : 1,245,771,014.40 = 817,599,993.30 : x
  2. Step 2: Convert to fraction form
    830,514,009.60/1,245,771,014.40 = 817,599,993.30/x
  3. Step 3: Cross multiply
    830,514,009.60x = 1,245,771,014.40 × 817,599,993.30
  4. Step 4: Simplify right side
    830,514,009.60x = 1,018,542,373,026,774,272
  5. Step 5: Solve for x
    x = 1,018,542,373,026,774,272/830,514,009.60
  6. Step 6: Final answer
    x = 1,226,399,989.95

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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.