Home / 780,487,896.51-1,076,974,003.08-445,982,102.01

Finding the Fourth Proportional to 780,487,896.51, 1,076,974,003.08 and 445,982,102.01

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Solution

The fourth proportional to 780,487,896.51, 1,076,974,003.08 and 445,982,102.01 is: 615,398,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,487,896.51 : 1,076,974,003.08 = 445,982,102.01 : x
  2. Step 2: Convert to fraction form
    780,487,896.51/1,076,974,003.08 = 445,982,102.01/x
  3. Step 3: Cross multiply
    780,487,896.51x = 1,076,974,003.08 × 445,982,102.01
  4. Step 4: Simplify right side
    780,487,896.51x = 480,311,129,703,742,592
  5. Step 5: Solve for x
    x = 480,311,129,703,742,592/780,487,896.51
  6. Step 6: Final answer
    x = 615,398,562.68

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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.