Home / 128,576,176,941.64-177,445,049,717-77,136,663,320.32

Finding the Fourth Proportional to 128,576,176,941.64, 177,445,049,717 and 77,136,663,320.32

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Solution

The fourth proportional to 128,576,176,941.64, 177,445,049,717 and 77,136,663,320.32 is: 106,454,550,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,576,176,941.64 : 177,445,049,717 = 77,136,663,320.32 : x
  2. Step 2: Convert to fraction form
    128,576,176,941.64/177,445,049,717 = 77,136,663,320.32/x
  3. Step 3: Cross multiply
    128,576,176,941.64x = 177,445,049,717 × 77,136,663,320.32
  4. Step 4: Simplify right side
    128,576,176,941.64x = 13,687,519,057,877,674,229,760
  5. Step 5: Solve for x
    x = 13,687,519,057,877,674,229,760/128,576,176,941.64
  6. Step 6: Final answer
    x = 106,454,550,006.49

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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.