Home / 19,184,128.40-28,807,685.40-12,822,582.80

Finding the Fourth Proportional to 19,184,128.40, 28,807,685.40 and 12,822,582.80

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Solution

The fourth proportional to 19,184,128.40, 28,807,685.40 and 12,822,582.80 is: 19,254,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184,128.40 : 28,807,685.40 = 12,822,582.80 : x
  2. Step 2: Convert to fraction form
    19,184,128.40/28,807,685.40 = 12,822,582.80/x
  3. Step 3: Cross multiply
    19,184,128.40x = 28,807,685.40 × 12,822,582.80
  4. Step 4: Simplify right side
    19,184,128.40x = 369,388,931,317,851.12
  5. Step 5: Solve for x
    x = 369,388,931,317,851.12/19,184,128.40
  6. Step 6: Final answer
    x = 19,254,923.84

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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.