Home / 118,329,678.76-163,301,264.58-66,119,981.80

Finding the Fourth Proportional to 118,329,678.76, 163,301,264.58 and 66,119,981.80

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Solution

The fourth proportional to 118,329,678.76, 163,301,264.58 and 66,119,981.80 is: 91,249,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,329,678.76 : 163,301,264.58 = 66,119,981.80 : x
  2. Step 2: Convert to fraction form
    118,329,678.76/163,301,264.58 = 66,119,981.80/x
  3. Step 3: Cross multiply
    118,329,678.76x = 163,301,264.58 × 66,119,981.80
  4. Step 4: Simplify right side
    118,329,678.76x = 10,797,476,641,946,586
  5. Step 5: Solve for x
    x = 10,797,476,641,946,586/118,329,678.76
  6. Step 6: Final answer
    x = 91,249,099.59

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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.