Home / 20,158,176,191.60-30,237,264,287.40-18,561,869,145.20

Finding the Fourth Proportional to 20,158,176,191.60, 30,237,264,287.40 and 18,561,869,145.20

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Solution

The fourth proportional to 20,158,176,191.60, 30,237,264,287.40 and 18,561,869,145.20 is: 27,842,803,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,176,191.60 : 30,237,264,287.40 = 18,561,869,145.20 : x
  2. Step 2: Convert to fraction form
    20,158,176,191.60/30,237,264,287.40 = 18,561,869,145.20/x
  3. Step 3: Cross multiply
    20,158,176,191.60x = 30,237,264,287.40 × 18,561,869,145.20
  4. Step 4: Simplify right side
    20,158,176,191.60x = 561,260,143,011,547,971,584
  5. Step 5: Solve for x
    x = 561,260,143,011,547,971,584/20,158,176,191.60
  6. Step 6: Final answer
    x = 27,842,803,717.80

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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.