Home / 745,030,445.19-1,028,165,309.18-427,548,772.77

Finding the Fourth Proportional to 745,030,445.19, 1,028,165,309.18 and 427,548,772.77

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Solution

The fourth proportional to 745,030,445.19, 1,028,165,309.18 and 427,548,772.77 is: 590,030,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,030,445.19 : 1,028,165,309.18 = 427,548,772.77 : x
  2. Step 2: Convert to fraction form
    745,030,445.19/1,028,165,309.18 = 427,548,772.77/x
  3. Step 3: Cross multiply
    745,030,445.19x = 1,028,165,309.18 × 427,548,772.77
  4. Step 4: Simplify right side
    745,030,445.19x = 439,590,816,144,596,544
  5. Step 5: Solve for x
    x = 439,590,816,144,596,544/745,030,445.19
  6. Step 6: Final answer
    x = 590,030,674.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.