Home / 917,871,984.20-1,266,602,735.21-516,047,672.63

Finding the Fourth Proportional to 917,871,984.20, 1,266,602,735.21 and 516,047,672.63

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Solution

The fourth proportional to 917,871,984.20, 1,266,602,735.21 and 516,047,672.63 is: 712,111,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,871,984.20 : 1,266,602,735.21 = 516,047,672.63 : x
  2. Step 2: Convert to fraction form
    917,871,984.20/1,266,602,735.21 = 516,047,672.63/x
  3. Step 3: Cross multiply
    917,871,984.20x = 1,266,602,735.21 × 516,047,672.63
  4. Step 4: Simplify right side
    917,871,984.20x = 653,627,393,642,999,424
  5. Step 5: Solve for x
    x = 653,627,393,642,999,424/917,871,984.20
  6. Step 6: Final answer
    x = 712,111,715.90

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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.