Home / 30,307,645.60-45,461,468.40-8,742,950.80

Finding the Fourth Proportional to 30,307,645.60, 45,461,468.40 and 8,742,950.80

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Solution

The fourth proportional to 30,307,645.60, 45,461,468.40 and 8,742,950.80 is: 13,114,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307,645.60 : 45,461,468.40 = 8,742,950.80 : x
  2. Step 2: Convert to fraction form
    30,307,645.60/45,461,468.40 = 8,742,950.80/x
  3. Step 3: Cross multiply
    30,307,645.60x = 45,461,468.40 × 8,742,950.80
  4. Step 4: Simplify right side
    30,307,645.60x = 397,467,381,516,954.75
  5. Step 5: Solve for x
    x = 397,467,381,516,954.75/30,307,645.60
  6. Step 6: Final answer
    x = 13,114,426.20

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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.