Finding the Fourth Proportional to 129,688,980.96, 178,975,036.41 and 70,950,283.46
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Solution
The fourth proportional to 129,688,980.96, 178,975,036.41 and 70,950,283.46 is: 97,913,712.26
Step by Step Solution
- Step 1: Write the proportion equation
129,688,980.96 : 178,975,036.41 = 70,950,283.46 : x - Step 2: Convert to fraction form
129,688,980.96/178,975,036.41 = 70,950,283.46/x - Step 3: Cross multiply
129,688,980.96x = 178,975,036.41 × 70,950,283.46 - Step 4: Simplify right side
129,688,980.96x = 12,698,329,564,658,446 - Step 5: Solve for x
x = 12,698,329,564,658,446/129,688,980.96 - Step 6: Final answer
x = 97,913,712.26
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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.