Home / 786,084,368.04-1,178,505,264.33-392,409,150.66

Finding the Fourth Proportional to 786,084,368.04, 1,178,505,264.33 and 392,409,150.66

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Solution

The fourth proportional to 786,084,368.04, 1,178,505,264.33 and 392,409,150.66 is: 588,303,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,084,368.04 : 1,178,505,264.33 = 392,409,150.66 : x
  2. Step 2: Convert to fraction form
    786,084,368.04/1,178,505,264.33 = 392,409,150.66/x
  3. Step 3: Cross multiply
    786,084,368.04x = 1,178,505,264.33 × 392,409,150.66
  4. Step 4: Simplify right side
    786,084,368.04x = 462,456,249,824,074,112
  5. Step 5: Solve for x
    x = 462,456,249,824,074,112/786,084,368.04
  6. Step 6: Final answer
    x = 588,303,582.45

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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.