Finding the Fourth Proportional to 93,312,006.20, 139,968,009.30 and 69,125,535.80
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Solution
The fourth proportional to 93,312,006.20, 139,968,009.30 and 69,125,535.80 is: 103,688,303.70
Step by Step Solution
- Step 1: Write the proportion equation
93,312,006.20 : 139,968,009.30 = 69,125,535.80 : x - Step 2: Convert to fraction form
93,312,006.20/139,968,009.30 = 69,125,535.80/x - Step 3: Cross multiply
93,312,006.20x = 139,968,009.30 × 69,125,535.80 - Step 4: Simplify right side
93,312,006.20x = 9,675,363,637,721,884 - Step 5: Solve for x
x = 9,675,363,637,721,884/93,312,006.20 - Step 6: Final answer
x = 103,688,303.70
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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.