Home / 30,307,615.10-45,461,422.65-8,742,920.30

Finding the Fourth Proportional to 30,307,615.10, 45,461,422.65 and 8,742,920.30

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Solution

The fourth proportional to 30,307,615.10, 45,461,422.65 and 8,742,920.30 is: 13,114,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307,615.10 : 45,461,422.65 = 8,742,920.30 : x
  2. Step 2: Convert to fraction form
    30,307,615.10/45,461,422.65 = 8,742,920.30/x
  3. Step 3: Cross multiply
    30,307,615.10x = 45,461,422.65 × 8,742,920.30
  4. Step 4: Simplify right side
    30,307,615.10x = 397,465,594,953,564.81
  5. Step 5: Solve for x
    x = 397,465,594,953,564.81/30,307,615.10
  6. Step 6: Final answer
    x = 13,114,380.45

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Double scale
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Similar ratio
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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.