Home / 478,095,784.40-717,143,676.60-437,281,115.60

Finding the Fourth Proportional to 478,095,784.40, 717,143,676.60 and 437,281,115.60

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Solution

The fourth proportional to 478,095,784.40, 717,143,676.60 and 437,281,115.60 is: 655,921,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,095,784.40 : 717,143,676.60 = 437,281,115.60 : x
  2. Step 2: Convert to fraction form
    478,095,784.40/717,143,676.60 = 437,281,115.60/x
  3. Step 3: Cross multiply
    478,095,784.40x = 717,143,676.60 × 437,281,115.60
  4. Step 4: Simplify right side
    478,095,784.40x = 313,593,386,949,133,632
  5. Step 5: Solve for x
    x = 313,593,386,949,133,632/478,095,784.40
  6. Step 6: Final answer
    x = 655,921,673.40

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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.