Finding the Fourth Proportional to 279,406,946.18, 385,564,212.42 and 153,952,121.52
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Solution
The fourth proportional to 279,406,946.18, 385,564,212.42 and 153,952,121.52 is: 212,444,355.07
Step by Step Solution
- Step 1: Write the proportion equation
279,406,946.18 : 385,564,212.42 = 153,952,121.52 : x - Step 2: Convert to fraction form
279,406,946.18/385,564,212.42 = 153,952,121.52/x - Step 3: Cross multiply
279,406,946.18x = 385,564,212.42 × 153,952,121.52 - Step 4: Simplify right side
279,406,946.18x = 59,358,428,484,246,936 - Step 5: Solve for x
x = 59,358,428,484,246,936/279,406,946.18 - Step 6: Final answer
x = 212,444,355.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.