Home / 93,012,900.38-128,356,783.85-51,196,071.63

Finding the Fourth Proportional to 93,012,900.38, 128,356,783.85 and 51,196,071.63

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Solution

The fourth proportional to 93,012,900.38, 128,356,783.85 and 51,196,071.63 is: 70,650,018.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,012,900.38 : 128,356,783.85 = 51,196,071.63 : x
  2. Step 2: Convert to fraction form
    93,012,900.38/128,356,783.85 = 51,196,071.63/x
  3. Step 3: Cross multiply
    93,012,900.38x = 128,356,783.85 × 51,196,071.63
  4. Step 4: Simplify right side
    93,012,900.38x = 6,571,363,099,925,047
  5. Step 5: Solve for x
    x = 6,571,363,099,925,047/93,012,900.38
  6. Step 6: Final answer
    x = 70,650,018.15

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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.