Home / 1,206,447,775.60-1,809,671,663.40-430,969,068.40

Finding the Fourth Proportional to 1,206,447,775.60, 1,809,671,663.40 and 430,969,068.40

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Solution

The fourth proportional to 1,206,447,775.60, 1,809,671,663.40 and 430,969,068.40 is: 646,453,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,447,775.60 : 1,809,671,663.40 = 430,969,068.40 : x
  2. Step 2: Convert to fraction form
    1,206,447,775.60/1,809,671,663.40 = 430,969,068.40/x
  3. Step 3: Cross multiply
    1,206,447,775.60x = 1,809,671,663.40 × 430,969,068.40
  4. Step 4: Simplify right side
    1,206,447,775.60x = 779,912,510,885,376,384
  5. Step 5: Solve for x
    x = 779,912,510,885,376,384/1,206,447,775.60
  6. Step 6: Final answer
    x = 646,453,602.60

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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.