Home / 384,911,999.10-577,367,998.65-212,725,115.10

Finding the Fourth Proportional to 384,911,999.10, 577,367,998.65 and 212,725,115.10

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Solution

The fourth proportional to 384,911,999.10, 577,367,998.65 and 212,725,115.10 is: 319,087,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,911,999.10 : 577,367,998.65 = 212,725,115.10 : x
  2. Step 2: Convert to fraction form
    384,911,999.10/577,367,998.65 = 212,725,115.10/x
  3. Step 3: Cross multiply
    384,911,999.10x = 577,367,998.65 × 212,725,115.10
  4. Step 4: Simplify right side
    384,911,999.10x = 122,820,673,967,877,888
  5. Step 5: Solve for x
    x = 122,820,673,967,877,888/384,911,999.10
  6. Step 6: Final answer
    x = 319,087,672.65

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1.5x scale

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.