Home / 66,553,386.30-99,830,079.45-18,684,330.30

Finding the Fourth Proportional to 66,553,386.30, 99,830,079.45 and 18,684,330.30

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Solution

The fourth proportional to 66,553,386.30, 99,830,079.45 and 18,684,330.30 is: 28,026,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,553,386.30 : 99,830,079.45 = 18,684,330.30 : x
  2. Step 2: Convert to fraction form
    66,553,386.30/99,830,079.45 = 18,684,330.30/x
  3. Step 3: Cross multiply
    66,553,386.30x = 99,830,079.45 × 18,684,330.30
  4. Step 4: Simplify right side
    66,553,386.30x = 1,865,258,178,319,042.50
  5. Step 5: Solve for x
    x = 1,865,258,178,319,042.50/66,553,386.30
  6. Step 6: Final answer
    x = 28,026,495.45

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Double scale
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Similar ratio
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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.