Home / 286,239,748,981.60-429,359,623,472.40-76,881,661,199.20

Finding the Fourth Proportional to 286,239,748,981.60, 429,359,623,472.40 and 76,881,661,199.20

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Solution

The fourth proportional to 286,239,748,981.60, 429,359,623,472.40 and 76,881,661,199.20 is: 115,322,491,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,239,748,981.60 : 429,359,623,472.40 = 76,881,661,199.20 : x
  2. Step 2: Convert to fraction form
    286,239,748,981.60/429,359,623,472.40 = 76,881,661,199.20/x
  3. Step 3: Cross multiply
    286,239,748,981.60x = 429,359,623,472.40 × 76,881,661,199.20
  4. Step 4: Simplify right side
    286,239,748,981.60x = 33,009,881,104,421,136,367,616
  5. Step 5: Solve for x
    x = 33,009,881,104,421,136,367,616/286,239,748,981.60
  6. Step 6: Final answer
    x = 115,322,491,798.80

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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.