Home / 1,668,009,998.52-2,301,888,955.80-915,316,590.40

Finding the Fourth Proportional to 1,668,009,998.52, 2,301,888,955.80 and 915,316,590.40

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Solution

The fourth proportional to 1,668,009,998.52, 2,301,888,955.80 and 915,316,590.40 is: 1,263,156,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,009,998.52 : 2,301,888,955.80 = 915,316,590.40 : x
  2. Step 2: Convert to fraction form
    1,668,009,998.52/2,301,888,955.80 = 915,316,590.40/x
  3. Step 3: Cross multiply
    1,668,009,998.52x = 2,301,888,955.80 × 915,316,590.40
  4. Step 4: Simplify right side
    1,668,009,998.52x = 2,106,957,150,502,272,512
  5. Step 5: Solve for x
    x = 2,106,957,150,502,272,512/1,668,009,998.52
  6. Step 6: Final answer
    x = 1,263,156,187.54

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1.5x scale

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.