Home / 309,099,125.60-463,648,688.40-139,229,813.60

Finding the Fourth Proportional to 309,099,125.60, 463,648,688.40 and 139,229,813.60

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Solution

The fourth proportional to 309,099,125.60, 463,648,688.40 and 139,229,813.60 is: 208,844,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,099,125.60 : 463,648,688.40 = 139,229,813.60 : x
  2. Step 2: Convert to fraction form
    309,099,125.60/463,648,688.40 = 139,229,813.60/x
  3. Step 3: Cross multiply
    309,099,125.60x = 463,648,688.40 × 139,229,813.60
  4. Step 4: Simplify right side
    309,099,125.60x = 64,553,720,461,816,480
  5. Step 5: Solve for x
    x = 64,553,720,461,816,480/309,099,125.60
  6. Step 6: Final answer
    x = 208,844,720.40

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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.