Home / 30,337,615.20-45,506,422.80-8,772,920.40

Finding the Fourth Proportional to 30,337,615.20, 45,506,422.80 and 8,772,920.40

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Solution

The fourth proportional to 30,337,615.20, 45,506,422.80 and 8,772,920.40 is: 13,159,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,337,615.20 : 45,506,422.80 = 8,772,920.40 : x
  2. Step 2: Convert to fraction form
    30,337,615.20/45,506,422.80 = 8,772,920.40/x
  3. Step 3: Cross multiply
    30,337,615.20x = 45,506,422.80 × 8,772,920.40
  4. Step 4: Simplify right side
    30,337,615.20x = 399,224,224,913,145.12
  5. Step 5: Solve for x
    x = 399,224,224,913,145.12/30,337,615.20
  6. Step 6: Final answer
    x = 13,159,380.60

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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.