Home / 458,136,001.80-686,196,233.10-407,075,675.40

Finding the Fourth Proportional to 458,136,001.80, 686,196,233.10 and 407,075,675.40

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Solution

The fourth proportional to 458,136,001.80, 686,196,233.10 and 407,075,675.40 is: 609,718,061.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,136,001.80 : 686,196,233.10 = 407,075,675.40 : x
  2. Step 2: Convert to fraction form
    458,136,001.80/686,196,233.10 = 407,075,675.40/x
  3. Step 3: Cross multiply
    458,136,001.80x = 686,196,233.10 × 407,075,675.40
  4. Step 4: Simplify right side
    458,136,001.80x = 279,333,795,046,118,336
  5. Step 5: Solve for x
    x = 279,333,795,046,118,336/458,136,001.80
  6. Step 6: Final answer
    x = 609,718,061.77

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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.