Home / 128,576,176,928.60-177,445,049,699.01-77,136,663,307.28

Finding the Fourth Proportional to 128,576,176,928.60, 177,445,049,699.01 and 77,136,663,307.28

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Solution

The fourth proportional to 128,576,176,928.60, 177,445,049,699.01 and 77,136,663,307.28 is: 106,454,549,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,576,176,928.60 : 177,445,049,699.01 = 77,136,663,307.28 : x
  2. Step 2: Convert to fraction form
    128,576,176,928.60/177,445,049,699.01 = 77,136,663,307.28/x
  3. Step 3: Cross multiply
    128,576,176,928.60x = 177,445,049,699.01 × 77,136,663,307.28
  4. Step 4: Simplify right side
    128,576,176,928.60x = 13,687,519,054,175,213,191,168
  5. Step 5: Solve for x
    x = 13,687,519,054,175,213,191,168/128,576,176,928.60
  6. Step 6: Final answer
    x = 106,454,549,988.50

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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.