Home / 435,743,999.70-653,615,999.55-402,487,602.90

Finding the Fourth Proportional to 435,743,999.70, 653,615,999.55 and 402,487,602.90

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Solution

The fourth proportional to 435,743,999.70, 653,615,999.55 and 402,487,602.90 is: 603,731,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,743,999.70 : 653,615,999.55 = 402,487,602.90 : x
  2. Step 2: Convert to fraction form
    435,743,999.70/653,615,999.55 = 402,487,602.90/x
  3. Step 3: Cross multiply
    435,743,999.70x = 653,615,999.55 × 402,487,602.90
  4. Step 4: Simplify right side
    435,743,999.70x = 263,072,336,875,966,944
  5. Step 5: Solve for x
    x = 263,072,336,875,966,944/435,743,999.70
  6. Step 6: Final answer
    x = 603,731,404.35

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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.