Home / 758,236,420.60-1,137,354,630.90-430,585,329.40

Finding the Fourth Proportional to 758,236,420.60, 1,137,354,630.90 and 430,585,329.40

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Solution

The fourth proportional to 758,236,420.60, 1,137,354,630.90 and 430,585,329.40 is: 645,877,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,236,420.60 : 1,137,354,630.90 = 430,585,329.40 : x
  2. Step 2: Convert to fraction form
    758,236,420.60/1,137,354,630.90 = 430,585,329.40/x
  3. Step 3: Cross multiply
    758,236,420.60x = 1,137,354,630.90 × 430,585,329.40
  4. Step 4: Simplify right side
    758,236,420.60x = 489,728,218,390,691,904
  5. Step 5: Solve for x
    x = 489,728,218,390,691,904/758,236,420.60
  6. Step 6: Final answer
    x = 645,877,994.10

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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.