Home / 30,352,254.30-45,528,381.45-21,264,613.20

Finding the Fourth Proportional to 30,352,254.30, 45,528,381.45 and 21,264,613.20

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Solution

The fourth proportional to 30,352,254.30, 45,528,381.45 and 21,264,613.20 is: 31,896,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352,254.30 : 45,528,381.45 = 21,264,613.20 : x
  2. Step 2: Convert to fraction form
    30,352,254.30/45,528,381.45 = 21,264,613.20/x
  3. Step 3: Cross multiply
    30,352,254.30x = 45,528,381.45 × 21,264,613.20
  4. Step 4: Simplify right side
    30,352,254.30x = 968,143,421,156,305.12
  5. Step 5: Solve for x
    x = 968,143,421,156,305.12/30,352,254.30
  6. Step 6: Final answer
    x = 31,896,919.80

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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.