Home / 93,312,009.10-139,968,013.65-86,509,564.30

Finding the Fourth Proportional to 93,312,009.10, 139,968,013.65 and 86,509,564.30

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Solution

The fourth proportional to 93,312,009.10, 139,968,013.65 and 86,509,564.30 is: 129,764,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,009.10 : 139,968,013.65 = 86,509,564.30 : x
  2. Step 2: Convert to fraction form
    93,312,009.10/139,968,013.65 = 86,509,564.30/x
  3. Step 3: Cross multiply
    93,312,009.10x = 139,968,013.65 × 86,509,564.30
  4. Step 4: Simplify right side
    93,312,009.10x = 12,108,571,876,797,952
  5. Step 5: Solve for x
    x = 12,108,571,876,797,952/93,312,009.10
  6. Step 6: Final answer
    x = 129,764,346.45

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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.