Home / 387,828,223.20-581,742,334.80-242,709,400.80

Finding the Fourth Proportional to 387,828,223.20, 581,742,334.80 and 242,709,400.80

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Solution

The fourth proportional to 387,828,223.20, 581,742,334.80 and 242,709,400.80 is: 364,064,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,828,223.20 : 581,742,334.80 = 242,709,400.80 : x
  2. Step 2: Convert to fraction form
    387,828,223.20/581,742,334.80 = 242,709,400.80/x
  3. Step 3: Cross multiply
    387,828,223.20x = 581,742,334.80 × 242,709,400.80
  4. Step 4: Simplify right side
    387,828,223.20x = 141,194,333,499,300,976
  5. Step 5: Solve for x
    x = 141,194,333,499,300,976/387,828,223.20
  6. Step 6: Final answer
    x = 364,064,101.20

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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.