Home / 472,645,457.38-651,644,437.13-387,559,085.31

Finding the Fourth Proportional to 472,645,457.38, 651,644,437.13 and 387,559,085.31

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Solution

The fourth proportional to 472,645,457.38, 651,644,437.13 and 387,559,085.31 is: 534,334,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,645,457.38 : 651,644,437.13 = 387,559,085.31 : x
  2. Step 2: Convert to fraction form
    472,645,457.38/651,644,437.13 = 387,559,085.31/x
  3. Step 3: Cross multiply
    472,645,457.38x = 651,644,437.13 × 387,559,085.31
  4. Step 4: Simplify right side
    472,645,457.38x = 252,550,722,001,452,608
  5. Step 5: Solve for x
    x = 252,550,722,001,452,608/472,645,457.38
  6. Step 6: Final answer
    x = 534,334,389.67

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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.