Home / 93,356,357.69-128,712,007.78-76,549,175.21

Finding the Fourth Proportional to 93,356,357.69, 128,712,007.78 and 76,549,175.21

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Solution

The fourth proportional to 93,356,357.69, 128,712,007.78 and 76,549,175.21 is: 105,539,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356,357.69 : 128,712,007.78 = 76,549,175.21 : x
  2. Step 2: Convert to fraction form
    93,356,357.69/128,712,007.78 = 76,549,175.21/x
  3. Step 3: Cross multiply
    93,356,357.69x = 128,712,007.78 × 76,549,175.21
  4. Step 4: Simplify right side
    93,356,357.69x = 9,852,798,035,312,512
  5. Step 5: Solve for x
    x = 9,852,798,035,312,512/93,356,357.69
  6. Step 6: Final answer
    x = 105,539,657.70

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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.