Home / 120,974,071,125.60-181,461,106,688.40-108,989,863,999.20

Finding the Fourth Proportional to 120,974,071,125.60, 181,461,106,688.40 and 108,989,863,999.20

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Solution

The fourth proportional to 120,974,071,125.60, 181,461,106,688.40 and 108,989,863,999.20 is: 163,484,795,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,974,071,125.60 : 181,461,106,688.40 = 108,989,863,999.20 : x
  2. Step 2: Convert to fraction form
    120,974,071,125.60/181,461,106,688.40 = 108,989,863,999.20/x
  3. Step 3: Cross multiply
    120,974,071,125.60x = 181,461,106,688.40 × 108,989,863,999.20
  4. Step 4: Simplify right side
    120,974,071,125.60x = 19,777,421,339,113,038,020,608
  5. Step 5: Solve for x
    x = 19,777,421,339,113,038,020,608/120,974,071,125.60
  6. Step 6: Final answer
    x = 163,484,795,998.80

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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.