Home / 639,738,039.80-959,607,059.70-536,425,909.40

Finding the Fourth Proportional to 639,738,039.80, 959,607,059.70 and 536,425,909.40

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Solution

The fourth proportional to 639,738,039.80, 959,607,059.70 and 536,425,909.40 is: 804,638,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,738,039.80 : 959,607,059.70 = 536,425,909.40 : x
  2. Step 2: Convert to fraction form
    639,738,039.80/959,607,059.70 = 536,425,909.40/x
  3. Step 3: Cross multiply
    639,738,039.80x = 959,607,059.70 × 536,425,909.40
  4. Step 4: Simplify right side
    639,738,039.80x = 514,758,089,666,232,576
  5. Step 5: Solve for x
    x = 514,758,089,666,232,576/639,738,039.80
  6. Step 6: Final answer
    x = 804,638,864.10

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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.