Home / 417,182,720.16-575,817,981.12-285,077,189.28

Finding the Fourth Proportional to 417,182,720.16, 575,817,981.12 and 285,077,189.28

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Solution

The fourth proportional to 417,182,720.16, 575,817,981.12 and 285,077,189.28 is: 393,478,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,182,720.16 : 575,817,981.12 = 285,077,189.28 : x
  2. Step 2: Convert to fraction form
    417,182,720.16/575,817,981.12 = 285,077,189.28/x
  3. Step 3: Cross multiply
    417,182,720.16x = 575,817,981.12 × 285,077,189.28
  4. Step 4: Simplify right side
    417,182,720.16x = 164,152,571,594,573,696
  5. Step 5: Solve for x
    x = 164,152,571,594,573,696/417,182,720.16
  6. Step 6: Final answer
    x = 393,478,837.12

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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.