Home / 1,252,457,864.34-1,728,692,873.73-716,919,973.26

Finding the Fourth Proportional to 1,252,457,864.34, 1,728,692,873.73 and 716,919,973.26

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Solution

The fourth proportional to 1,252,457,864.34, 1,728,692,873.73 and 716,919,973.26 is: 989,521,870.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,457,864.34 : 1,728,692,873.73 = 716,919,973.26 : x
  2. Step 2: Convert to fraction form
    1,252,457,864.34/1,728,692,873.73 = 716,919,973.26/x
  3. Step 3: Cross multiply
    1,252,457,864.34x = 1,728,692,873.73 × 716,919,973.26
  4. Step 4: Simplify right side
    1,252,457,864.34x = 1,239,334,448,809,264,128
  5. Step 5: Solve for x
    x = 1,239,334,448,809,264,128/1,252,457,864.34
  6. Step 6: Final answer
    x = 989,521,870.63

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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.