Home / 78,046,354,389.74-117,046,820,302.49-30,228,698,671.36

Finding the Fourth Proportional to 78,046,354,389.74, 117,046,820,302.49 and 30,228,698,671.36

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Solution

The fourth proportional to 78,046,354,389.74, 117,046,820,302.49 and 30,228,698,671.36 is: 45,334,251,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046,354,389.74 : 117,046,820,302.49 = 30,228,698,671.36 : x
  2. Step 2: Convert to fraction form
    78,046,354,389.74/117,046,820,302.49 = 30,228,698,671.36/x
  3. Step 3: Cross multiply
    78,046,354,389.74x = 117,046,820,302.49 × 30,228,698,671.36
  4. Step 4: Simplify right side
    78,046,354,389.74x = 3,538,173,061,364,792,164,352
  5. Step 5: Solve for x
    x = 3,538,173,061,364,792,164,352/78,046,354,389.74
  6. Step 6: Final answer
    x = 45,334,251,535.90

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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.