Finding the Fourth Proportional to 288,632,641.68, 432,902,875.68 and 84,112,877.52
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Solution
The fourth proportional to 288,632,641.68, 432,902,875.68 and 84,112,877.52 is: 126,155,885.72
Step by Step Solution
- Step 1: Write the proportion equation
288,632,641.68 : 432,902,875.68 = 84,112,877.52 : x - Step 2: Convert to fraction form
288,632,641.68/432,902,875.68 = 84,112,877.52/x - Step 3: Cross multiply
288,632,641.68x = 432,902,875.68 × 84,112,877.52 - Step 4: Simplify right side
288,632,641.68x = 36,412,706,560,127,624 - Step 5: Solve for x
x = 36,412,706,560,127,624/288,632,641.68 - Step 6: Final answer
x = 126,155,885.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.