Home / 1,218,875,637.51-1,682,191,973.61-723,838,346.01

Finding the Fourth Proportional to 1,218,875,637.51, 1,682,191,973.61 and 723,838,346.01

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Solution

The fourth proportional to 1,218,875,637.51, 1,682,191,973.61 and 723,838,346.01 is: 998,982,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,875,637.51 : 1,682,191,973.61 = 723,838,346.01 : x
  2. Step 2: Convert to fraction form
    1,218,875,637.51/1,682,191,973.61 = 723,838,346.01/x
  3. Step 3: Cross multiply
    1,218,875,637.51x = 1,682,191,973.61 × 723,838,346.01
  4. Step 4: Simplify right side
    1,218,875,637.51x = 1,217,635,055,849,159,936
  5. Step 5: Solve for x
    x = 1,217,635,055,849,159,936/1,218,875,637.51
  6. Step 6: Final answer
    x = 998,982,191.77

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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.