Home / 420,140,880.80-630,860,127.60-229,037,904.80

Finding the Fourth Proportional to 420,140,880.80, 630,860,127.60 and 229,037,904.80

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Solution

The fourth proportional to 420,140,880.80, 630,860,127.60 and 229,037,904.80 is: 343,910,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,140,880.80 : 630,860,127.60 = 229,037,904.80 : x
  2. Step 2: Convert to fraction form
    420,140,880.80/630,860,127.60 = 229,037,904.80/x
  3. Step 3: Cross multiply
    420,140,880.80x = 630,860,127.60 × 229,037,904.80
  4. Step 4: Simplify right side
    420,140,880.80x = 144,490,881,847,364,672
  5. Step 5: Solve for x
    x = 144,490,881,847,364,672/420,140,880.80
  6. Step 6: Final answer
    x = 343,910,551.08

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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.