Home / 76,878,679,640.40-115,275,980,804.40-61,044,728,587.20

Finding the Fourth Proportional to 76,878,679,640.40, 115,275,980,804.40 and 61,044,728,587.20

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Solution

The fourth proportional to 76,878,679,640.40, 115,275,980,804.40 and 61,044,728,587.20 is: 91,533,712,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,878,679,640.40 : 115,275,980,804.40 = 61,044,728,587.20 : x
  2. Step 2: Convert to fraction form
    76,878,679,640.40/115,275,980,804.40 = 61,044,728,587.20/x
  3. Step 3: Cross multiply
    76,878,679,640.40x = 115,275,980,804.40 × 61,044,728,587.20
  4. Step 4: Simplify right side
    76,878,679,640.40x = 7,036,990,960,827,873,886,208
  5. Step 5: Solve for x
    x = 7,036,990,960,827,873,886,208/76,878,679,640.40
  6. Step 6: Final answer
    x = 91,533,712,516.18

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1.5x scale

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.