Home / 208,598,529.40-312,773,378.10-127,877,428.60

Finding the Fourth Proportional to 208,598,529.40, 312,773,378.10 and 127,877,428.60

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Solution

The fourth proportional to 208,598,529.40, 312,773,378.10 and 127,877,428.60 is: 191,739,872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,598,529.40 : 312,773,378.10 = 127,877,428.60 : x
  2. Step 2: Convert to fraction form
    208,598,529.40/312,773,378.10 = 127,877,428.60/x
  3. Step 3: Cross multiply
    208,598,529.40x = 312,773,378.10 × 127,877,428.60
  4. Step 4: Simplify right side
    208,598,529.40x = 39,996,655,325,963,552
  5. Step 5: Solve for x
    x = 39,996,655,325,963,552/208,598,529.40
  6. Step 6: Final answer
    x = 191,739,872.00

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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.