Home / 53,280,020.40-79,920,030.60-19,204,810.80

Finding the Fourth Proportional to 53,280,020.40, 79,920,030.60 and 19,204,810.80

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Solution

The fourth proportional to 53,280,020.40, 79,920,030.60 and 19,204,810.80 is: 28,807,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280,020.40 : 79,920,030.60 = 19,204,810.80 : x
  2. Step 2: Convert to fraction form
    53,280,020.40/79,920,030.60 = 19,204,810.80/x
  3. Step 3: Cross multiply
    53,280,020.40x = 79,920,030.60 × 19,204,810.80
  4. Step 4: Simplify right side
    53,280,020.40x = 1,534,849,066,803,210.50
  5. Step 5: Solve for x
    x = 1,534,849,066,803,210.50/53,280,020.40
  6. Step 6: Final answer
    x = 28,807,216.20

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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.