Home / 1,119,936,006.60-1,679,904,009.90-689,357,113.80

Finding the Fourth Proportional to 1,119,936,006.60, 1,679,904,009.90 and 689,357,113.80

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Solution

The fourth proportional to 1,119,936,006.60, 1,679,904,009.90 and 689,357,113.80 is: 1,034,035,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,936,006.60 : 1,679,904,009.90 = 689,357,113.80 : x
  2. Step 2: Convert to fraction form
    1,119,936,006.60/1,679,904,009.90 = 689,357,113.80/x
  3. Step 3: Cross multiply
    1,119,936,006.60x = 1,679,904,009.90 × 689,357,113.80
  4. Step 4: Simplify right side
    1,119,936,006.60x = 1,158,053,779,725,710,592
  5. Step 5: Solve for x
    x = 1,158,053,779,725,710,592/1,119,936,006.60
  6. Step 6: Final answer
    x = 1,034,035,670.70

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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.