Home / 21,138,497,430.56-31,707,028,022.16-5,417,476,428.32

Finding the Fourth Proportional to 21,138,497,430.56, 31,707,028,022.16 and 5,417,476,428.32

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Solution

The fourth proportional to 21,138,497,430.56, 31,707,028,022.16 and 5,417,476,428.32 is: 8,126,030,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,497,430.56 : 31,707,028,022.16 = 5,417,476,428.32 : x
  2. Step 2: Convert to fraction form
    21,138,497,430.56/31,707,028,022.16 = 5,417,476,428.32/x
  3. Step 3: Cross multiply
    21,138,497,430.56x = 31,707,028,022.16 × 5,417,476,428.32
  4. Step 4: Simplify right side
    21,138,497,430.56x = 171,772,076,922,133,512,192
  5. Step 5: Solve for x
    x = 171,772,076,922,133,512,192/21,138,497,430.56
  6. Step 6: Final answer
    x = 8,126,030,598.27

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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.