Home / 315,905,223.60-435,971,288.52-176,688,851.76

Finding the Fourth Proportional to 315,905,223.60, 435,971,288.52 and 176,688,851.76

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Solution

The fourth proportional to 315,905,223.60, 435,971,288.52 and 176,688,851.76 is: 243,842,964.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,905,223.60 : 435,971,288.52 = 176,688,851.76 : x
  2. Step 2: Convert to fraction form
    315,905,223.60/435,971,288.52 = 176,688,851.76/x
  3. Step 3: Cross multiply
    315,905,223.60x = 435,971,288.52 × 176,688,851.76
  4. Step 4: Simplify right side
    315,905,223.60x = 77,031,266,368,926,464
  5. Step 5: Solve for x
    x = 77,031,266,368,926,464/315,905,223.60
  6. Step 6: Final answer
    x = 243,842,964.96

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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.