Home / 15,642,312,583.32-21,583,774,405.08-9,213,412,597.20

Finding the Fourth Proportional to 15,642,312,583.32, 21,583,774,405.08 and 9,213,412,597.20

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Solution

The fourth proportional to 15,642,312,583.32, 21,583,774,405.08 and 9,213,412,597.20 is: 12,712,967,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,312,583.32 : 21,583,774,405.08 = 9,213,412,597.20 : x
  2. Step 2: Convert to fraction form
    15,642,312,583.32/21,583,774,405.08 = 9,213,412,597.20/x
  3. Step 3: Cross multiply
    15,642,312,583.32x = 21,583,774,405.08 × 9,213,412,597.20
  4. Step 4: Simplify right side
    15,642,312,583.32x = 198,860,218,998,887,055,360
  5. Step 5: Solve for x
    x = 198,860,218,998,887,055,360/15,642,312,583.32
  6. Step 6: Final answer
    x = 12,712,967,979.62

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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.