Home / 1,455,359,852.10-2,183,039,778.15-420,254,501.70

Finding the Fourth Proportional to 1,455,359,852.10, 2,183,039,778.15 and 420,254,501.70

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Solution

The fourth proportional to 1,455,359,852.10, 2,183,039,778.15 and 420,254,501.70 is: 630,381,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,359,852.10 : 2,183,039,778.15 = 420,254,501.70 : x
  2. Step 2: Convert to fraction form
    1,455,359,852.10/2,183,039,778.15 = 420,254,501.70/x
  3. Step 3: Cross multiply
    1,455,359,852.10x = 2,183,039,778.15 × 420,254,501.70
  4. Step 4: Simplify right side
    1,455,359,852.10x = 917,432,294,157,706,752
  5. Step 5: Solve for x
    x = 917,432,294,157,706,752/1,455,359,852.10
  6. Step 6: Final answer
    x = 630,381,752.55

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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.