Home / 472,406,365.80-708,609,548.70-407,783,140.20

Finding the Fourth Proportional to 472,406,365.80, 708,609,548.70 and 407,783,140.20

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Solution

The fourth proportional to 472,406,365.80, 708,609,548.70 and 407,783,140.20 is: 611,674,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,406,365.80 : 708,609,548.70 = 407,783,140.20 : x
  2. Step 2: Convert to fraction form
    472,406,365.80/708,609,548.70 = 407,783,140.20/x
  3. Step 3: Cross multiply
    472,406,365.80x = 708,609,548.70 × 407,783,140.20
  4. Step 4: Simplify right side
    472,406,365.80x = 288,959,026,944,590,848
  5. Step 5: Solve for x
    x = 288,959,026,944,590,848/472,406,365.80
  6. Step 6: Final answer
    x = 611,674,710.30

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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.