Home / 77,571,678.16-107,049,740.79-42,765,614.16

Finding the Fourth Proportional to 77,571,678.16, 107,049,740.79 and 42,765,614.16

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Solution

The fourth proportional to 77,571,678.16, 107,049,740.79 and 42,765,614.16 is: 59,017,002.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,571,678.16 : 107,049,740.79 = 42,765,614.16 : x
  2. Step 2: Convert to fraction form
    77,571,678.16/107,049,740.79 = 42,765,614.16/x
  3. Step 3: Cross multiply
    77,571,678.16x = 107,049,740.79 × 42,765,614.16
  4. Step 4: Simplify right side
    77,571,678.16x = 4,578,047,911,114,961
  5. Step 5: Solve for x
    x = 4,578,047,911,114,961/77,571,678.16
  6. Step 6: Final answer
    x = 59,017,002.34

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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.