Home / 651,837,396.60-977,756,094.90-392,919,341.40

Finding the Fourth Proportional to 651,837,396.60, 977,756,094.90 and 392,919,341.40

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Solution

The fourth proportional to 651,837,396.60, 977,756,094.90 and 392,919,341.40 is: 589,379,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,837,396.60 : 977,756,094.90 = 392,919,341.40 : x
  2. Step 2: Convert to fraction form
    651,837,396.60/977,756,094.90 = 392,919,341.40/x
  3. Step 3: Cross multiply
    651,837,396.60x = 977,756,094.90 × 392,919,341.40
  4. Step 4: Simplify right side
    651,837,396.60x = 384,179,280,857,943,872
  5. Step 5: Solve for x
    x = 384,179,280,857,943,872/651,837,396.60
  6. Step 6: Final answer
    x = 589,379,012.10

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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.