Home / 189,349,929.45-261,300,358.80-105,719,341.50

Finding the Fourth Proportional to 189,349,929.45, 261,300,358.80 and 105,719,341.50

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Solution

The fourth proportional to 189,349,929.45, 261,300,358.80 and 105,719,341.50 is: 145,891,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,349,929.45 : 261,300,358.80 = 105,719,341.50 : x
  2. Step 2: Convert to fraction form
    189,349,929.45/261,300,358.80 = 105,719,341.50/x
  3. Step 3: Cross multiply
    189,349,929.45x = 261,300,358.80 × 105,719,341.50
  4. Step 4: Simplify right side
    189,349,929.45x = 27,624,501,866,049,732
  5. Step 5: Solve for x
    x = 27,624,501,866,049,732/189,349,929.45
  6. Step 6: Final answer
    x = 145,891,270.97

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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.