Home / 18,120,559,643.12-25,007,147,350.20-10,091,898,894.28

Finding the Fourth Proportional to 18,120,559,643.12, 25,007,147,350.20 and 10,091,898,894.28

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Solution

The fourth proportional to 18,120,559,643.12, 25,007,147,350.20 and 10,091,898,894.28 is: 13,927,252,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,559,643.12 : 25,007,147,350.20 = 10,091,898,894.28 : x
  2. Step 2: Convert to fraction form
    18,120,559,643.12/25,007,147,350.20 = 10,091,898,894.28/x
  3. Step 3: Cross multiply
    18,120,559,643.12x = 25,007,147,350.20 × 10,091,898,894.28
  4. Step 4: Simplify right side
    18,120,559,643.12x = 252,369,602,692,580,442,112
  5. Step 5: Solve for x
    x = 252,369,602,692,580,442,112/18,120,559,643.12
  6. Step 6: Final answer
    x = 13,927,252,119.30

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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.