Home / 201,451,012.40-302,176,518.60-140,229,009.20

Finding the Fourth Proportional to 201,451,012.40, 302,176,518.60 and 140,229,009.20

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Solution

The fourth proportional to 201,451,012.40, 302,176,518.60 and 140,229,009.20 is: 210,343,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,451,012.40 : 302,176,518.60 = 140,229,009.20 : x
  2. Step 2: Convert to fraction form
    201,451,012.40/302,176,518.60 = 140,229,009.20/x
  3. Step 3: Cross multiply
    201,451,012.40x = 302,176,518.60 × 140,229,009.20
  4. Step 4: Simplify right side
    201,451,012.40x = 42,373,913,806,783,368
  5. Step 5: Solve for x
    x = 42,373,913,806,783,368/201,451,012.40
  6. Step 6: Final answer
    x = 210,343,513.80

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1.5x scale

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.