Home / 93,312,666.40-139,968,999.60-86,510,221.60

Finding the Fourth Proportional to 93,312,666.40, 139,968,999.60 and 86,510,221.60

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Solution

The fourth proportional to 93,312,666.40, 139,968,999.60 and 86,510,221.60 is: 129,765,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,666.40 : 139,968,999.60 = 86,510,221.60 : x
  2. Step 2: Convert to fraction form
    93,312,666.40/139,968,999.60 = 86,510,221.60/x
  3. Step 3: Cross multiply
    93,312,666.40x = 139,968,999.60 × 86,510,221.60
  4. Step 4: Simplify right side
    93,312,666.40x = 12,108,749,172,526,310
  5. Step 5: Solve for x
    x = 12,108,749,172,526,310/93,312,666.40
  6. Step 6: Final answer
    x = 129,765,332.40

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Similar ratio
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1.5x scale

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.