Home / 890,156,333.51-1,228,253,314.47-513,675,575.72

Finding the Fourth Proportional to 890,156,333.51, 1,228,253,314.47 and 513,675,575.72

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Solution

The fourth proportional to 890,156,333.51, 1,228,253,314.47 and 513,675,575.72 is: 708,778,564.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,156,333.51 : 1,228,253,314.47 = 513,675,575.72 : x
  2. Step 2: Convert to fraction form
    890,156,333.51/1,228,253,314.47 = 513,675,575.72/x
  3. Step 3: Cross multiply
    890,156,333.51x = 1,228,253,314.47 × 513,675,575.72
  4. Step 4: Simplify right side
    890,156,333.51x = 630,923,728,443,778,688
  5. Step 5: Solve for x
    x = 630,923,728,443,778,688/890,156,333.51
  6. Step 6: Final answer
    x = 708,778,564.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.