Home / 30,619,008.60-45,875,368.80-19,830,756.30

Finding the Fourth Proportional to 30,619,008.60, 45,875,368.80 and 19,830,756.30

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Solution

The fourth proportional to 30,619,008.60, 45,875,368.80 and 19,830,756.30 is: 29,711,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619,008.60 : 45,875,368.80 = 19,830,756.30 : x
  2. Step 2: Convert to fraction form
    30,619,008.60/45,875,368.80 = 19,830,756.30/x
  3. Step 3: Cross multiply
    30,619,008.60x = 45,875,368.80 × 19,830,756.30
  4. Step 4: Simplify right side
    30,619,008.60x = 909,743,258,845,423.38
  5. Step 5: Solve for x
    x = 909,743,258,845,423.38/30,619,008.60
  6. Step 6: Final answer
    x = 29,711,715.06

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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.