Home / 1,869,502,452.30-2,804,253,678.45-778,843,802.70

Finding the Fourth Proportional to 1,869,502,452.30, 2,804,253,678.45 and 778,843,802.70

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Solution

The fourth proportional to 1,869,502,452.30, 2,804,253,678.45 and 778,843,802.70 is: 1,168,265,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,502,452.30 : 2,804,253,678.45 = 778,843,802.70 : x
  2. Step 2: Convert to fraction form
    1,869,502,452.30/2,804,253,678.45 = 778,843,802.70/x
  3. Step 3: Cross multiply
    1,869,502,452.30x = 2,804,253,678.45 × 778,843,802.70
  4. Step 4: Simplify right side
    1,869,502,452.30x = 2,184,075,598,659,461,120
  5. Step 5: Solve for x
    x = 2,184,075,598,659,461,120/1,869,502,452.30
  6. Step 6: Final answer
    x = 1,168,265,704.05

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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.