Home / 651,921,342.60-977,882,013.90-393,003,287.40

Finding the Fourth Proportional to 651,921,342.60, 977,882,013.90 and 393,003,287.40

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Solution

The fourth proportional to 651,921,342.60, 977,882,013.90 and 393,003,287.40 is: 589,504,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,921,342.60 : 977,882,013.90 = 393,003,287.40 : x
  2. Step 2: Convert to fraction form
    651,921,342.60/977,882,013.90 = 393,003,287.40/x
  3. Step 3: Cross multiply
    651,921,342.60x = 977,882,013.90 × 393,003,287.40
  4. Step 4: Simplify right side
    651,921,342.60x = 384,310,846,152,032,448
  5. Step 5: Solve for x
    x = 384,310,846,152,032,448/651,921,342.60
  6. Step 6: Final answer
    x = 589,504,931.10

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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.