Home / 221,500,666,885.92-305,666,935,804.95-125,154,684,772.32

Finding the Fourth Proportional to 221,500,666,885.92, 305,666,935,804.95 and 125,154,684,772.32

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Solution

The fourth proportional to 221,500,666,885.92, 305,666,935,804.95 and 125,154,684,772.32 is: 172,711,213,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,500,666,885.92 : 305,666,935,804.95 = 125,154,684,772.32 : x
  2. Step 2: Convert to fraction form
    221,500,666,885.92/305,666,935,804.95 = 125,154,684,772.32/x
  3. Step 3: Cross multiply
    221,500,666,885.92x = 305,666,935,804.95 × 125,154,684,772.32
  4. Step 4: Simplify right side
    221,500,666,885.92x = 38,255,648,995,989,497,315,328
  5. Step 5: Solve for x
    x = 38,255,648,995,989,497,315,328/221,500,666,885.92
  6. Step 6: Final answer
    x = 172,711,213,622.18

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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.