Home / 90,652,927,802.60-135,979,391,703.90-71,714,921,479.40

Finding the Fourth Proportional to 90,652,927,802.60, 135,979,391,703.90 and 71,714,921,479.40

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Solution

The fourth proportional to 90,652,927,802.60, 135,979,391,703.90 and 71,714,921,479.40 is: 107,572,382,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,652,927,802.60 : 135,979,391,703.90 = 71,714,921,479.40 : x
  2. Step 2: Convert to fraction form
    90,652,927,802.60/135,979,391,703.90 = 71,714,921,479.40/x
  3. Step 3: Cross multiply
    90,652,927,802.60x = 135,979,391,703.90 × 71,714,921,479.40
  4. Step 4: Simplify right side
    90,652,927,802.60x = 9,751,751,398,861,762,985,984
  5. Step 5: Solve for x
    x = 9,751,751,398,861,762,985,984/90,652,927,802.60
  6. Step 6: Final answer
    x = 107,572,382,219.10

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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.