Home / 145,900,105.39-201,346,918.47-79,819,070.70

Finding the Fourth Proportional to 145,900,105.39, 201,346,918.47 and 79,819,070.70

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Solution

The fourth proportional to 145,900,105.39, 201,346,918.47 and 79,819,070.70 is: 110,152,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,900,105.39 : 201,346,918.47 = 79,819,070.70 : x
  2. Step 2: Convert to fraction form
    145,900,105.39/201,346,918.47 = 79,819,070.70/x
  3. Step 3: Cross multiply
    145,900,105.39x = 201,346,918.47 × 79,819,070.70
  4. Step 4: Simplify right side
    145,900,105.39x = 16,071,323,920,584,066
  5. Step 5: Solve for x
    x = 16,071,323,920,584,066/145,900,105.39
  6. Step 6: Final answer
    x = 110,152,928.80

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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.