Home / 718,200,312,440.04-991,115,784,303.12-405,406,549,910.16

Finding the Fourth Proportional to 718,200,312,440.04, 991,115,784,303.12 and 405,406,549,910.16

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Solution

The fourth proportional to 718,200,312,440.04, 991,115,784,303.12 and 405,406,549,910.16 is: 559,460,673,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,200,312,440.04 : 991,115,784,303.12 = 405,406,549,910.16 : x
  2. Step 2: Convert to fraction form
    718,200,312,440.04/991,115,784,303.12 = 405,406,549,910.16/x
  3. Step 3: Cross multiply
    718,200,312,440.04x = 991,115,784,303.12 × 405,406,549,910.16
  4. Step 4: Simplify right side
    718,200,312,440.04x = 401,804,830,675,830,178,840,576
  5. Step 5: Solve for x
    x = 401,804,830,675,830,178,840,576/718,200,312,440.04
  6. Step 6: Final answer
    x = 559,460,673,737.00

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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.