Home / 1,223,642,835.04-1,688,627,355.32-666,725,882.08

Finding the Fourth Proportional to 1,223,642,835.04, 1,688,627,355.32 and 666,725,882.08

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Solution

The fourth proportional to 1,223,642,835.04, 1,688,627,355.32 and 666,725,882.08 is: 920,081,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,642,835.04 : 1,688,627,355.32 = 666,725,882.08 : x
  2. Step 2: Convert to fraction form
    1,223,642,835.04/1,688,627,355.32 = 666,725,882.08/x
  3. Step 3: Cross multiply
    1,223,642,835.04x = 1,688,627,355.32 × 666,725,882.08
  4. Step 4: Simplify right side
    1,223,642,835.04x = 1,125,851,562,980,144,640
  5. Step 5: Solve for x
    x = 1,125,851,562,980,144,640/1,223,642,835.04
  6. Step 6: Final answer
    x = 920,081,849.65

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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.