Home / 121,178,688.30-181,768,032.45-70,034,381.10

Finding the Fourth Proportional to 121,178,688.30, 181,768,032.45 and 70,034,381.10

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Solution

The fourth proportional to 121,178,688.30, 181,768,032.45 and 70,034,381.10 is: 105,051,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,178,688.30 : 181,768,032.45 = 70,034,381.10 : x
  2. Step 2: Convert to fraction form
    121,178,688.30/181,768,032.45 = 70,034,381.10/x
  3. Step 3: Cross multiply
    121,178,688.30x = 181,768,032.45 × 70,034,381.10
  4. Step 4: Simplify right side
    121,178,688.30x = 12,730,011,656,400,464
  5. Step 5: Solve for x
    x = 12,730,011,656,400,464/121,178,688.30
  6. Step 6: Final answer
    x = 105,051,571.65

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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.