Home / 128,705,543.10-192,799,827.90-59,521,372.74

Finding the Fourth Proportional to 128,705,543.10, 192,799,827.90 and 59,521,372.74

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Solution

The fourth proportional to 128,705,543.10, 192,799,827.90 and 59,521,372.74 is: 89,162,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,705,543.10 : 192,799,827.90 = 59,521,372.74 : x
  2. Step 2: Convert to fraction form
    128,705,543.10/192,799,827.90 = 59,521,372.74/x
  3. Step 3: Cross multiply
    128,705,543.10x = 192,799,827.90 × 59,521,372.74
  4. Step 4: Simplify right side
    128,705,543.10x = 11,475,710,420,643,752
  5. Step 5: Solve for x
    x = 11,475,710,420,643,752/128,705,543.10
  6. Step 6: Final answer
    x = 89,162,518.91

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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.