Home / 472,645,457.37-651,644,437.11-387,559,085.30

Finding the Fourth Proportional to 472,645,457.37, 651,644,437.11 and 387,559,085.30

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Solution

The fourth proportional to 472,645,457.37, 651,644,437.11 and 387,559,085.30 is: 534,334,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,645,457.37 : 651,644,437.11 = 387,559,085.30 : x
  2. Step 2: Convert to fraction form
    472,645,457.37/651,644,437.11 = 387,559,085.30/x
  3. Step 3: Cross multiply
    472,645,457.37x = 651,644,437.11 × 387,559,085.30
  4. Step 4: Simplify right side
    472,645,457.37x = 252,550,721,984,895,648
  5. Step 5: Solve for x
    x = 252,550,721,984,895,648/472,645,457.37
  6. Step 6: Final answer
    x = 534,334,389.65

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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.