Home / 406,533,916.79-609,814,032.21-193,532,031.89

Finding the Fourth Proportional to 406,533,916.79, 609,814,032.21 and 193,532,031.89

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Solution

The fourth proportional to 406,533,916.79, 609,814,032.21 and 193,532,031.89 is: 290,304,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,533,916.79 : 609,814,032.21 = 193,532,031.89 : x
  2. Step 2: Convert to fraction form
    406,533,916.79/609,814,032.21 = 193,532,031.89/x
  3. Step 3: Cross multiply
    406,533,916.79x = 609,814,032.21 × 193,532,031.89
  4. Step 4: Simplify right side
    406,533,916.79x = 118,018,548,725,586,144
  5. Step 5: Solve for x
    x = 118,018,548,725,586,144/406,533,916.79
  6. Step 6: Final answer
    x = 290,304,311.28

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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.