Home / 105,074,781.63-157,475,461.28-42,753,467.16

Finding the Fourth Proportional to 105,074,781.63, 157,475,461.28 and 42,753,467.16

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Solution

The fourth proportional to 105,074,781.63, 157,475,461.28 and 42,753,467.16 is: 64,074,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,074,781.63 : 157,475,461.28 = 42,753,467.16 : x
  2. Step 2: Convert to fraction form
    105,074,781.63/157,475,461.28 = 42,753,467.16/x
  3. Step 3: Cross multiply
    105,074,781.63x = 157,475,461.28 × 42,753,467.16
  4. Step 4: Simplify right side
    105,074,781.63x = 6,732,621,962,340,331
  5. Step 5: Solve for x
    x = 6,732,621,962,340,331/105,074,781.63
  6. Step 6: Final answer
    x = 64,074,574.87

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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.