Home / 139,368,020.85-192,249,428.13-83,598,602.31

Finding the Fourth Proportional to 139,368,020.85, 192,249,428.13 and 83,598,602.31

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Solution

The fourth proportional to 139,368,020.85, 192,249,428.13 and 83,598,602.31 is: 115,319,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,368,020.85 : 192,249,428.13 = 83,598,602.31 : x
  2. Step 2: Convert to fraction form
    139,368,020.85/192,249,428.13 = 83,598,602.31/x
  3. Step 3: Cross multiply
    139,368,020.85x = 192,249,428.13 × 83,598,602.31
  4. Step 4: Simplify right side
    139,368,020.85x = 16,071,783,486,564,798
  5. Step 5: Solve for x
    x = 16,071,783,486,564,798/139,368,020.85
  6. Step 6: Final answer
    x = 115,319,019.30

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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.