Home / 105,257,557.62-145,197,112.55-61,199,685.68

Finding the Fourth Proportional to 105,257,557.62, 145,197,112.55 and 61,199,685.68

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Solution

The fourth proportional to 105,257,557.62, 145,197,112.55 and 61,199,685.68 is: 84,421,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,257,557.62 : 145,197,112.55 = 61,199,685.68 : x
  2. Step 2: Convert to fraction form
    105,257,557.62/145,197,112.55 = 61,199,685.68/x
  3. Step 3: Cross multiply
    105,257,557.62x = 145,197,112.55 × 61,199,685.68
  4. Step 4: Simplify right side
    105,257,557.62x = 8,886,017,648,671,598
  5. Step 5: Solve for x
    x = 8,886,017,648,671,598/105,257,557.62
  6. Step 6: Final answer
    x = 84,421,659.11

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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.