Home / 256,632,020.40-384,948,030.60-118,457,360.40

Finding the Fourth Proportional to 256,632,020.40, 384,948,030.60 and 118,457,360.40

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Solution

The fourth proportional to 256,632,020.40, 384,948,030.60 and 118,457,360.40 is: 177,686,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,632,020.40 : 384,948,030.60 = 118,457,360.40 : x
  2. Step 2: Convert to fraction form
    256,632,020.40/384,948,030.60 = 118,457,360.40/x
  3. Step 3: Cross multiply
    256,632,020.40x = 384,948,030.60 × 118,457,360.40
  4. Step 4: Simplify right side
    256,632,020.40x = 45,599,927,596,054,432
  5. Step 5: Solve for x
    x = 45,599,927,596,054,432/256,632,020.40
  6. Step 6: Final answer
    x = 177,686,040.60

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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.