Home / 28,742,813.40-43,114,220.10-28,364,899.80

Finding the Fourth Proportional to 28,742,813.40, 43,114,220.10 and 28,364,899.80

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Solution

The fourth proportional to 28,742,813.40, 43,114,220.10 and 28,364,899.80 is: 42,547,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742,813.40 : 43,114,220.10 = 28,364,899.80 : x
  2. Step 2: Convert to fraction form
    28,742,813.40/43,114,220.10 = 28,364,899.80/x
  3. Step 3: Cross multiply
    28,742,813.40x = 43,114,220.10 × 28,364,899.80
  4. Step 4: Simplify right side
    28,742,813.40x = 1,222,930,533,091,646
  5. Step 5: Solve for x
    x = 1,222,930,533,091,646/28,742,813.40
  6. Step 6: Final answer
    x = 42,547,349.70

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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.