Home / 1,378,314,473.30-1,902,234,779.08-783,688,053.94

Finding the Fourth Proportional to 1,378,314,473.30, 1,902,234,779.08 and 783,688,053.94

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Solution

The fourth proportional to 1,378,314,473.30, 1,902,234,779.08 and 783,688,053.94 is: 1,081,580,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,314,473.30 : 1,902,234,779.08 = 783,688,053.94 : x
  2. Step 2: Convert to fraction form
    1,378,314,473.30/1,902,234,779.08 = 783,688,053.94/x
  3. Step 3: Cross multiply
    1,378,314,473.30x = 1,902,234,779.08 × 783,688,053.94
  4. Step 4: Simplify right side
    1,378,314,473.30x = 1,490,758,672,154,191,104
  5. Step 5: Solve for x
    x = 1,490,758,672,154,191,104/1,378,314,473.30
  6. Step 6: Final answer
    x = 1,081,580,946.17

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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.