Home / 71,681,185,569.90-98,920,045,768.78-39,566,553,784.78

Finding the Fourth Proportional to 71,681,185,569.90, 98,920,045,768.78 and 39,566,553,784.78

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Solution

The fourth proportional to 71,681,185,569.90, 98,920,045,768.78 and 39,566,553,784.78 is: 54,601,849,567.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,681,185,569.90 : 98,920,045,768.78 = 39,566,553,784.78 : x
  2. Step 2: Convert to fraction form
    71,681,185,569.90/98,920,045,768.78 = 39,566,553,784.78/x
  3. Step 3: Cross multiply
    71,681,185,569.90x = 98,920,045,768.78 × 39,566,553,784.78
  4. Step 4: Simplify right side
    71,681,185,569.90x = 3,913,925,311,303,333,183,488
  5. Step 5: Solve for x
    x = 3,913,925,311,303,333,183,488/71,681,185,569.90
  6. Step 6: Final answer
    x = 54,601,849,567.44

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Double scale
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1.5x scale

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.