Home / 261,411,823.88-392,160,293.74-77,197,931.88

Finding the Fourth Proportional to 261,411,823.88, 392,160,293.74 and 77,197,931.88

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Solution

The fourth proportional to 261,411,823.88, 392,160,293.74 and 77,197,931.88 is: 115,809,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,411,823.88 : 392,160,293.74 = 77,197,931.88 : x
  2. Step 2: Convert to fraction form
    261,411,823.88/392,160,293.74 = 77,197,931.88/x
  3. Step 3: Cross multiply
    261,411,823.88x = 392,160,293.74 × 77,197,931.88
  4. Step 4: Simplify right side
    261,411,823.88x = 30,273,963,642,181,308
  5. Step 5: Solve for x
    x = 30,273,963,642,181,308/261,411,823.88
  6. Step 6: Final answer
    x = 115,809,465.67

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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.