Home / 128,288,533,848.65-177,038,352,025.81-69,627,356,731.07

Finding the Fourth Proportional to 128,288,533,848.65, 177,038,352,025.81 and 69,627,356,731.07

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Solution

The fourth proportional to 128,288,533,848.65, 177,038,352,025.81 and 69,627,356,731.07 is: 96,085,847,439.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,288,533,848.65 : 177,038,352,025.81 = 69,627,356,731.07 : x
  2. Step 2: Convert to fraction form
    128,288,533,848.65/177,038,352,025.81 = 69,627,356,731.07/x
  3. Step 3: Cross multiply
    128,288,533,848.65x = 177,038,352,025.81 × 69,627,356,731.07
  4. Step 4: Simplify right side
    128,288,533,848.65x = 12,326,712,491,581,823,254,528
  5. Step 5: Solve for x
    x = 12,326,712,491,581,823,254,528/128,288,533,848.65
  6. Step 6: Final answer
    x = 96,085,847,439.21

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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.